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configure.in
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configure.in
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# configure.in
# (c) 2002 Mikulas Patocka, Karel 'Clock' Kulhavy, Petr 'Brain' Kulhavy,
# Martin 'PerM' Pergel
# This file is a part of the Links program, released under GPL.
AC_INIT(main.c)
AM_INIT_AUTOMAKE(links, 2.22)
ACLOCAL="./missing aclocal"
AUTOCONF="./missing autoconf"
AUTOMAKE="./missing automake"
AUTOHEADER="./missing autoheader"
export CC
export CPPFLAGS
export CFLAGS
export LDFLAGS
export LIBS
AM_CONFIG_HEADER(config.h)
dnl Checks for programs.
AC_PROG_CC
dnl AC_PROG_CXX
dnl AC_PROG_AWK
dnl AM_PROG_LEX
dnl AC_PROG_YACC
image_formats="GIF PNG XBM"
static_link=0
if test -n "`echo "$CC" "$LDFLAGS" "$CFLAGS" "$LIBS" | grep 'static\>'`"; then
static_link=1
fi
if test -n "`uname|grep -i bsd`"; then
CPPFLAGS="$CPPFLAGS -I/usr/local/include"
LDFLAGS="$LDFLAGS -L/usr/local/lib"
fi
AC_HEADER_STDC
AC_PROG_GCC_TRADITIONAL
dnl Check for libraries
AC_CACHE_CHECK([for EMX], ac_cv_have_emx,
AC_TRY_COMPILE(, [#ifndef __EMX__
kill me!
#endif ], ac_cv_have_emx=yes, ac_cv_have_emx=no)
)
test "$ac_cv_have_emx" = yes && LDFLAGS="`echo "$LDFLAGS" | sed "s/-Zexe//g" | sed "s/-Zbin-files//g"`"
test "$ac_cv_have_emx" = yes && test "$static_link" = 0 && LDFLAGS="$LDFLAGS -Zcrtdll"
AC_CACHE_CHECK([for OpenWatcom], ac_cv_have_watcom,
AC_TRY_COMPILE(, [#ifndef __WATCOMC__
kill me!
#endif ], ac_cv_have_watcom=yes, ac_cv_have_watcom=no)
)
test "$ac_cv_have_watcom" = yes && ac_cv_lib_dir_opendir=no
AC_CACHE_CHECK([for DJGPP], ac_cv_have_djgpp,
AC_TRY_COMPILE(, [#ifndef __DJGPP
kill me!
#endif ], ac_cv_have_djgpp=yes, ac_cv_have_djgpp=no)
)
if test "$ac_cv_have_djgpp" = yes; then
static_link=1
test -n "$DJDIR" && test -d "$DJDIR/net/watt/inc" && CPPFLAGS="-I$DJDIR/net/watt/inc $CPPFLAGS"
test -n "$DJDIR" && test -d "$DJDIR/net/watt/lib" && LDFLAGS="-L$DJDIR/net/watt/lib $LDFLAGS"
fi
AC_CACHE_CHECK([for ARM64 ILP32], ac_cv_have_arm64_ilp32,
AC_TRY_COMPILE(, [#if !(defined(__aarch64__) && defined(__ILP32__))
kill me!
#endif ], ac_cv_have_arm64_ilp32=yes, ac_cv_have_arm64_ilp32=no)
)
test "$ac_cv_have_arm64_ilp32" = yes && disable_openmp=yes
AC_CACHE_CHECK([for volatile], ac_cv_have_volatile,
AC_TRY_COMPILE([], [
volatile int a = 0;
return a;
], ac_cv_have_volatile=yes, ac_cv_have_volatile=no)
)
if test "$ac_cv_have_volatile" = yes; then
AC_DEFINE(HAVE_VOLATILE)
fi
AC_CACHE_CHECK([for restrict], ac_cv_have_restrict,
AC_TRY_COMPILE([
static void f(int * restrict a, int * restrict b)
{
}
], [
int a, b;
f(&a, &b);
return 0;
], ac_cv_have_restrict=yes, ac_cv_have_restrict=no)
)
if test "$ac_cv_have_restrict" = yes; then
AC_DEFINE(HAVE_RESTRICT)
fi
AC_CACHE_CHECK([for __restrict], ac_cv_have___restrict,
AC_TRY_COMPILE([
static void f(int * __restrict a, int * __restrict b)
{
}
], [
int a, b;
f(&a, &b);
return 0;
], ac_cv_have___restrict=yes, ac_cv_have___restrict=no)
)
if test "$ac_cv_have___restrict" = yes; then
AC_DEFINE(HAVE___RESTRICT)
fi
AC_CACHE_CHECK([for long long], ac_cv_have_long_long,
AC_TRY_COMPILE(, [unsigned long long a; ], ac_cv_have_long_long=yes, ac_cv_have_long_long=no)
)
test "$ac_cv_have_long_long" = yes && AC_DEFINE(HAVE_LONG_LONG)
AC_CACHE_CHECK([for pointer comparison bug], ac_cv_pointer_comparison_bug,
AC_TRY_RUN([
int main()
{
void *p = (void *)-1L;
return p != (void *)-1L;
}
], ac_cv_pointer_comparison_bug=no, ac_cv_pointer_comparison_bug=yes,
[if test -n "`echo "$CC"|grep ^tcc`"; then
ac_cv_pointer_comparison_bug=yes
else
ac_cv_pointer_comparison_bug=no
fi]
)
)
test "$ac_cv_pointer_comparison_bug" = yes && AC_DEFINE(HAVE_POINTER_COMPARISON_BUG)
if test "$ac_cv_have_long_long" = yes -a "$ac_cv_have_volatile" = yes; then
AC_CACHE_CHECK([for maxint conversion bug], ac_cv_maxint_conversion_bug,
AC_TRY_RUN([
int main()
{
volatile long long q = 0x7FFFFFEF;
return q < 0;
}
], ac_cv_maxint_conversion_bug=no, ac_cv_maxint_conversion_bug=yes,
[if test -n "`echo "$CC"|grep ^cc`" -a "`uname -s`" = HP-UX; then
ac_cv_maxint_conversion_bug=yes
else
ac_cv_maxint_conversion_bug=no
fi]
)
)
test "$ac_cv_maxint_conversion_bug" = yes && AC_DEFINE(HAVE_MAXINT_CONVERSION_BUG)
fi
dnl AC_CACHE_CHECK([for _FILE_OFFSET_BITS 64], ac_cv_have_file_offset_bits,
dnl AC_TRY_COMPILE([
dnl #define _FILE_OFFSET_BITS 64
dnl #include <stdio.h>
dnl ], [
dnl return 0;
dnl ], ac_cv_have_file_offset_bits=yes, ac_cv_have_file_offset_bits=no)
dnl )
dnl test "$ac_cv_have_file_offset_bits" = yes && AC_DEFINE(HAVE_FILE_OFFSET_BITS)
dnl note: HAVE_STDLIB_H clashes with defines in jpeglib.h,
dnl so we must use a different name
AC_CACHE_CHECK([for stdlib.h], ac_cv_have_stdlib_h,
AC_TRY_COMPILE([#include <stdlib.h>],[],
ac_cv_have_stdlib_h=yes, ac_cv_have_stdlib_h=no)
)
if test "$ac_cv_have_stdlib_h" = yes; then
AC_DEFINE(HAVE_STDLIB_H_X)
fi
dnl Checks for header files.
AC_HEADER_DIRENT
AC_HEADER_SYS_WAIT
AC_CHECK_HEADERS(alloca.h arpa/inet.h bsd/string.h cygwin/process.h cygwin/version.h fcntl.h grp.h ieee.h interix/interix.h inttypes.h io.h langinfo.h limits.h linux/falloc.h locale.h malloc.h math.h net/socket.h netinet/in_system.h netinet/in_systm.h netinet/ip.h poll.h process.h pwd.h search.h setjmp.h sgtty.h stdarg.h string.h strings.h sys/cygwin.h sys/file.h sys/fmutex.h sys/ioctl.h sys/resource.h sys/select.h sys/time.h sys/un.h sys/utsname.h termios.h time.h umalloc.h unistd.h unixlib.h utime.h uwin.h values.h)
if test "$ac_cv_header_stdarg_h" != yes; then
AC_ERROR([stdarg.h not present])
fi
dnl Checks for typedefs, structures, and compiler characteristics.
AC_C_CONST
AC_C_INLINE
AC_TYPE_SIZE_T
AC_TYPE_PID_T
AC_CACHE_CHECK([for socklen_t], ac_cv_have_socklen_t,
AC_TRY_COMPILE([
#include <sys/types.h>
#include <sys/socket.h>
], [
socklen_t a = 0;
return a;
], ac_cv_have_socklen_t=yes, ac_cv_have_socklen_t=no)
)
if test "$ac_cv_have_socklen_t" = yes; then
AC_DEFINE(HAVE_SOCKLEN_T)
fi
AC_CACHE_CHECK([for errno], ac_cv_have_errno,
AC_TRY_COMPILE([
#include <errno.h>
], [
errno = 0;
return errno;
], ac_cv_have_errno=yes, ac_cv_have_errno=no)
)
if test "$ac_cv_have_errno" = yes; then
AC_DEFINE(HAVE_ERRNO)
fi
AC_HEADER_TIME
AC_STRUCT_TM
if test "$ac_cv_have_emx" = yes; then
default_short=2
default_int=4
default_long=4
default_long_long=8
else
default_short=0
default_int=0
default_long=0
default_long_long=0
fi
dnl Check for compiler type sizes
dnl AC_CHECK_SIZEOF(short, "$default_short")
AC_CHECK_SIZEOF(unsigned short, "$default_short")
dnl AC_CHECK_SIZEOF(int, "$default_int")
AC_CHECK_SIZEOF(unsigned, "$default_int")
dnl AC_CHECK_SIZEOF(long, "$default_long")
AC_CHECK_SIZEOF(unsigned long, "$default_long")
if test "$ac_cv_have_long_long" = yes; then
dnl AC_CHECK_SIZEOF(long long, "$default_long_long")
AC_CHECK_SIZEOF(unsigned long long, "$default_long_long")
fi
if test "$ac_cv_sizeof_unsigned" -ne 0 && test "$ac_cv_sizeof_unsigned" -lt 4; then
AC_ERROR([integer must have at least 32 bits])
fi
AC_CACHE_CHECK([for big endian], ac_cv_big_endian,
AC_TRY_RUN([
long l;
char *c = (char *)&l;
int main()
{
l = 0x12345678L;
return !(c[[sizeof(long) - 1]] == 0x78 && c[[sizeof(long) - 2]] == 0x56 && c[[sizeof(long) - 3]] == 0x34 && c[[sizeof(long) - 4]] == 0x12);
}
], ac_cv_big_endian=yes, ac_cv_big_endian=no, ac_cv_big_endian=no)
)
AC_CACHE_CHECK([for little endian], ac_cv_little_endian,
AC_TRY_RUN([
long l;
char *c = (char *)&l;
int main()
{
l = 0x12345678L;
return !(c[[0]] == 0x78 && c[[1]] == 0x56 && c[[2]] == 0x34 && c[[3]] == 0x12);
}
], ac_cv_little_endian=yes, ac_cv_little_endian=no, ac_cv_little_endian="$ac_cv_have_emx")
)
if test "$ac_cv_big_endian" = yes; then
AC_DEFINE(C_BIG_ENDIAN)
else if test "$ac_cv_little_endian" = yes; then
AC_DEFINE(C_LITTLE_ENDIAN)
fi
fi
AC_CACHE_CHECK([if rename can replace existing files], ac_cv_rename_over_existing_files,
AC_TRY_RUN([
#include <fcntl.h>
#include <stdio.h>
#include <unistd.h>
int main()
{
int ret;
close(creat("conftest.rename1", 0600));
close(creat("conftest.rename2", 0600));
ret = rename("conftest.rename1", "conftest.rename2");
unlink("conftest.rename1");
unlink("conftest.rename2");
return !!ret;
}
], ac_cv_rename_over_existing_files=yes, ac_cv_rename_over_existing_files=no, ac_cv_rename_over_existing_files=no)
)
if test "$ac_cv_rename_over_existing_files" = yes; then
AC_DEFINE(RENAME_OVER_EXISTING_FILES)
fi
dnl Checks for library functions.
AC_TYPE_SIGNAL
AC_FUNC_STRFTIME
AC_FUNC_VPRINTF
AC_HAVE_FUNCS(bcmp bcopy bzero calloc cfmakeraw chmod cygwin_conv_path cygwin_conv_to_full_win32_path dirfd fallocate freelocale getcwd getgrgid gethostname getpagesize getpid getpwuid getrlimit gettimeofday kqueue malloc_trim mallopt mktime newlocale nl_langinfo poll popen posix_fallocate raise select setlocale setpgid setrlimit setsid sigaction sigblock sigdelset sigprocmask sigsetmask snprintf strdup strerror_l strptime strtod strtoimax strtol strtoll strtoq strtoul sysconf tdelete tempnam tfind tsearch uname unixpath2win utime utimes uwin_path winpath2unix _heapmin _msize _ucreate _udefault _udestroy _uopen __strtoll)
AC_HAVE_FUNCS(strlen)
AC_CACHE_CHECK([for strlen], ac_cv_have_strlen,
AC_TRY_LINK([#include <string.h>], [char * volatile str = ""; return strlen(str);], ac_cv_have_strlen=yes, ac_cv_have_strlen=no)
)
if test "$ac_cv_have_strlen" = yes; then
AC_DEFINE(HAVE_STRLEN)
fi
AC_HAVE_FUNCS(strnlen)
AC_CACHE_CHECK([for strnlen], ac_cv_have_strnlen,
AC_TRY_LINK([#include <string.h>], [char * volatile str = ""; return strnlen(str, 3);], ac_cv_have_strnlen=yes, ac_cv_have_strnlen=no)
)
if test "$ac_cv_have_strnlen" = yes; then
AC_DEFINE(HAVE_STRNLEN)
fi
AC_HAVE_FUNCS(strcpy)
AC_CACHE_CHECK([for strcpy], ac_cv_have_strcpy,
AC_TRY_LINK([#include <string.h>], [char * volatile str = ""; char a[[100]]; strcpy(a, str); return a[[0]];], ac_cv_have_strcpy=yes, ac_cv_have_strcpy=no)
)
if test "$ac_cv_have_strcpy" = yes; then
AC_DEFINE(HAVE_STRCPY)
fi
AC_HAVE_FUNCS(strncpy)
AC_CACHE_CHECK([for strncpy], ac_cv_have_strncpy,
AC_TRY_LINK([#include <string.h>], [char * volatile str = ""; char a[[100]]; volatile int l = 1; strncpy(a, str, l); return a[[0]];], ac_cv_have_strncpy=yes, ac_cv_have_strncpy=no)
)
if test "$ac_cv_have_strncpy" = yes; then
AC_DEFINE(HAVE_STRNCPY)
fi
AC_HAVE_FUNCS(strchr)
AC_CACHE_CHECK([for strchr], ac_cv_have_strchr,
AC_TRY_LINK([#include <string.h>], [char * volatile str = ""; return !!strchr(str, 0);], ac_cv_have_strchr=yes, ac_cv_have_strchr=no)
)
if test "$ac_cv_have_strchr" = yes; then
AC_DEFINE(HAVE_STRCHR)
fi
AC_HAVE_FUNCS(strrchr)
AC_CACHE_CHECK([for strrchr], ac_cv_have_strrchr,
AC_TRY_LINK([#include <string.h>], [char * volatile str = ""; return !!strrchr(str, 0);], ac_cv_have_strrchr=yes, ac_cv_have_strrchr=no)
)
if test "$ac_cv_have_strrchr" = yes; then
AC_DEFINE(HAVE_STRRCHR)
fi
AC_HAVE_FUNCS(strcmp)
AC_CACHE_CHECK([for strcmp], ac_cv_have_strcmp,
AC_TRY_LINK([#include <string.h>], [char * volatile str = ""; char * volatile str2 = ""; return strcmp(str2, str);], ac_cv_have_strcmp=yes, ac_cv_have_strcmp=no)
)
if test "$ac_cv_have_strcmp" = yes; then
AC_DEFINE(HAVE_STRCMP)
fi
AC_HAVE_FUNCS(strncmp)
AC_CACHE_CHECK([for strncmp], ac_cv_have_strncmp,
AC_TRY_LINK([#include <string.h>], [char * volatile str = ""; char * volatile str2 = ""; volatile int l = 1; return strncmp(str2, str, l);], ac_cv_have_strncmp=yes, ac_cv_have_strncmp=no)
)
if test "$ac_cv_have_strncmp" = yes; then
AC_DEFINE(HAVE_STRNCMP)
fi
AC_HAVE_FUNCS(strcspn)
AC_CACHE_CHECK([for strcspn], ac_cv_have_strcspn,
AC_TRY_LINK([#include <string.h>], [char * volatile str = ""; char * volatile str2 = ""; return strcspn(str2, str);], ac_cv_have_strcspn=yes, ac_cv_have_strcspn=no)
)
if test "$ac_cv_have_strcspn" = yes; then
AC_DEFINE(HAVE_STRCSPN)
fi
AC_HAVE_FUNCS(strspn)
AC_CACHE_CHECK([for strspn], ac_cv_have_strspn,
AC_TRY_LINK([#include <string.h>], [char * volatile str = ""; char * volatile str2 = ""; return strspn(str2, str);], ac_cv_have_strspn=yes, ac_cv_have_strspn=no)
)
if test "$ac_cv_have_strspn" = yes; then
AC_DEFINE(HAVE_STRSPN)
fi
AC_HAVE_FUNCS(strstr)
AC_CACHE_CHECK([for strstr], ac_cv_have_strstr,
AC_TRY_LINK([#include <string.h>], [char * volatile str = ""; char * volatile str2 = ""; return !!strstr(str2, str);], ac_cv_have_strstr=yes, ac_cv_have_strstr=no)
)
if test "$ac_cv_have_strstr" = yes; then
AC_DEFINE(HAVE_STRSTR)
fi
AC_HAVE_FUNCS(memchr)
AC_CACHE_CHECK([for memchr], ac_cv_have_memchr,
AC_TRY_LINK([#include <string.h>], [char * volatile str = ""; volatile int l = 1; return !!memchr(str, 0, l);], ac_cv_have_memchr=yes, ac_cv_have_memchr=no)
)
if test "$ac_cv_have_memchr" = yes; then
AC_DEFINE(HAVE_MEMCHR)
fi
AC_HAVE_FUNCS(memrchr)
AC_CACHE_CHECK([for memrchr], ac_cv_have_memrchr,
AC_TRY_LINK([#include <string.h>], [char * volatile str = ""; volatile int l = 1; return !!memrchr(str, 0, l);], ac_cv_have_memrchr=yes, ac_cv_have_memrchr=no)
)
if test "$ac_cv_have_memrchr" = yes; then
AC_DEFINE(HAVE_MEMRCHR)
fi
AC_HAVE_FUNCS(memcmp)
AC_CACHE_CHECK([for memcmp], ac_cv_have_memcmp,
AC_TRY_LINK([#include <string.h>], [char * volatile str = ""; char * volatile str2 = ""; volatile int l = 1; return memcmp(str2, str, l);], ac_cv_have_memcmp=yes, ac_cv_have_memcmp=no)
)
if test "$ac_cv_have_memcmp" = yes; then
AC_DEFINE(HAVE_MEMCMP)
fi
AC_HAVE_FUNCS(memcpy)
AC_CACHE_CHECK([for memcpy], ac_cv_have_memcpy,
AC_TRY_LINK([#include <string.h>], [char * volatile str = ""; char a[[100]]; volatile int l = 1; memcpy(a, str, l); return a[[0]];], ac_cv_have_memcpy=yes, ac_cv_have_memcpy=no)
)
if test "$ac_cv_have_memcpy" = yes; then
AC_DEFINE(HAVE_MEMCPY)
fi
AC_HAVE_FUNCS(memmove)
AC_CACHE_CHECK([for memmove], ac_cv_have_memmove,
AC_TRY_LINK([#include <string.h>], [char * volatile str = ""; char a[[100]]; volatile int l = 1; memmove(a, str, l); return a[[0]];], ac_cv_have_memmove=yes, ac_cv_have_memmove=no)
)
if test "$ac_cv_have_memmove" = yes; then
AC_DEFINE(HAVE_MEMMOVE)
fi
AC_HAVE_FUNCS(memset)
AC_CACHE_CHECK([for memset], ac_cv_have_memset,
AC_TRY_LINK([#include <string.h>], [char a[[100]]; char * volatile str = a; volatile int l = 1; memset(str, 0, l); return a[[0]];], ac_cv_have_memset=yes, ac_cv_have_memset=no)
)
if test "$ac_cv_have_memset" = yes; then
AC_DEFINE(HAVE_MEMSET)
fi
AC_HAVE_FUNCS(memmem)
AC_CACHE_CHECK([for memmem], ac_cv_have_memmem,
AC_TRY_LINK([#define _GNU_SOURCE
#include <string.h>], [char * volatile str = ""; char * volatile str2 = ""; volatile int l = 1; volatile int l2 = 1; return !!memmem(str2, l2, str, l);], ac_cv_have_memmem=yes, ac_cv_have_memmem=no)
)
if test "$ac_cv_have_memmem" = yes; then
AC_DEFINE(HAVE_MEMMEM)
fi
AC_HAVE_FUNCS(strerror)
AC_CACHE_CHECK([for strerror], ac_cv_have_strerror,
AC_TRY_LINK([#include <string.h>], [volatile int e = 1; return strerror(e)[[0]];], ac_cv_have_strerror=yes, ac_cv_have_strerror=no)
)
if test "$ac_cv_have_strerror" = yes; then
AC_DEFINE(HAVE_STRERROR)
fi
AC_CACHE_CHECK([for sigfillset], ac_cv_have_sigfillset,
AC_TRY_LINK([#include <signal.h>], [sigset_t set; sigfillset(&set);], ac_cv_have_sigfillset=yes, ac_cv_have_sigfillset=no)
)
if test "$ac_cv_have_sigfillset" = yes; then
AC_DEFINE(HAVE_SIGFILLSET)
fi
AC_CACHE_CHECK([for sigsetjmp/siglongjmp], ac_cv_have_sigsetjmp,
AC_TRY_LINK([#include <setjmp.h>], [sigjmp_buf env;sigsetjmp(env, 1);siglongjmp(env, 2);], ac_cv_have_sigsetjmp=yes, ac_cv_have_sigsetjmp=no)
)
if test "$ac_cv_have_sigsetjmp" = yes; then
AC_DEFINE(HAVE_SIGSETJMP)
fi
AC_CACHE_CHECK([for gcc assembler], ac_cv_have_gcc_assembler,
AC_TRY_RUN([
int main(void)
{
void *o = (void *)0, *i = (void *)-1L;
__asm__ volatile ("" : "=r"(o) : "0"(i) : "memory");
if (o != (void *)-1L)
return 1;
#if defined(__i386__) || defined(__x86_64__)
{
int x = (int)((unsigned)-1 >> 1);
int y = 1;
int result = 0;
unsigned char ovf = 0;
__asm__ ("addl %2, %0; seto %1":"=r"(result), "=q"(ovf):"g"(y),"0"(x));
if (result != ~x || ovf != 1)
return 1;
}
#endif
#if defined(__x86_64__) && !defined(__TINYC__)
{
static const unsigned char zero;
__asm__ ("jmp 1f; movntdqa %0, %%xmm0; 1:" : : "m"(zero) : "xmm0");
}
#endif
#if defined(__alpha__)
__asm__ volatile (".p2align 3; nop; .p2align 3" ::: "memory");
#endif
return 0;
}
], ac_cv_have_gcc_assembler=yes, ac_cv_have_gcc_assembler=no, ac_cv_have_gcc_assembler="$ac_cv_have_emx")
)
if test "$ac_cv_have_gcc_assembler" = yes; then
AC_DEFINE(HAVE_GCC_ASSEMBLER)
fi
AC_CACHE_CHECK([for __builtin_add_overflow], ac_cv_have___builtin_add_overflow,
AC_TRY_LINK([], [volatile int a = 1, b = 2; int c; return __builtin_add_overflow(a, b, &c);], ac_cv_have___builtin_add_overflow=yes, ac_cv_have___builtin_add_overflow=no)
)
if test "$ac_cv_have___builtin_add_overflow" = yes; then
AC_DEFINE(HAVE___BUILTIN_ADD_OVERFLOW)
fi
AC_CACHE_CHECK([for __builtin_clz], ac_cv_have___builtin_clz,
AC_TRY_LINK([], [volatile unsigned a = 1; return __builtin_clz(a);], ac_cv_have___builtin_clz=yes, ac_cv_have___builtin_clz=no)
)
if test "$ac_cv_have___builtin_clz" = yes; then
AC_DEFINE(HAVE___BUILTIN_CLZ)
fi
if test "$ac_cv_func_select" != yes; then
AC_ERROR([select function not present])
fi
AC_CHECK_LIB(bsd, strmode)
dnl User option
AC_MSG_CHECKING([for requested debug level])
AC_ARG_ENABLE(debuglevel, [ --enable-debuglevel set internal checking level
-1 - recover from segmentation faults
0 - no checks (fastest)
1 - check memory leaks
2 - check memory leaks, red zone
3 - check memory leaks, red zone, pattern filling], cf_debuglevel="$enableval", cf_debuglevel=0)
if test "$cf_debuglevel" = no; then cf_debuglevel=0; fi
if test "$cf_debuglevel" = yes; then cf_debuglevel=2; fi
AC_MSG_RESULT($cf_debuglevel)
if test "$cf_debuglevel" != -1 && test "$cf_debuglevel" != 0 && test "$cf_debuglevel" != 1 && test "$cf_debuglevel" != 2 && test "$cf_debuglevel" != 3; then
AC_ERROR([Invalid debuglevel specified])
fi
AC_DEFINE_UNQUOTED(DEBUGLEVEL, $cf_debuglevel)
AC_MSG_CHECKING([if you want to enable javascript])
cf_use_javascript=no
AC_ARG_ENABLE(javascript, [ --enable-javascript DELETE1], cf_use_javascript="$enableval")
AC_MSG_RESULT($cf_use_javascript)
if test "$cf_use_javascript" = yes; then
AC_DEFINE(JS)
AC_MSG_CHECKING([if you want to link with system libfl])
cf_use_libfl=no
AC_ARG_WITH(libfl, [ --with-libfl DELETE2], cf_use_libfl="$withval")
AC_MSG_RESULT($cf_use_libfl)
if test "$cf_use_libfl" != no; then
LIBS="$LIBS -lfl"
else
AC_DEFINE(CHCEME_FLEXI_LIBU)
fi
reg_exp_mode="NONE"
PKG_CHECK_MODULES(LIBPCRE, libpcre, pkgconfig_libpcre=yes, pkgconfig_libpcre=no)
if test "$pkgconfig_libpcre" = "yes"; then
CPPFLAGS="$CPPFLAGS $LIBPCRE_CFLAGS"
LIBS="$LIBPCRE_LIBS $LIBS"
fi
AC_CHECK_LIB(pcre, pcre_compile)
AC_CHECK_HEADERS(pcre.h)
if test "$ac_cv_lib_pcre_pcre_compile" = yes && test "$ac_cv_header_pcre_h" = yes; then
AC_DEFINE(HAVE_PCRE)
reg_exp_mode="PCRE"
else
AC_HAVE_FUNCS(regcomp)
AC_CHECK_HEADERS(regex.h)
if test "$ac_cv_func_regcomp" = yes && test "$ac_cv_header_regex_h" = yes; then
AC_DEFINE(HAVE_REGEX)
reg_exp_mode="LIBC"
fi
fi
AC_CHECK_LIB(m, fmod)
fi
cf_use_graphics=no
AC_MSG_CHECKING([if you want to use graphics])
AC_ARG_ENABLE(graphics, [ --enable-graphics use graphics], cf_use_graphics="$enableval" )
AC_MSG_RESULT($cf_use_graphics)
AC_MSG_CHECKING([if you want to enable UTF-8 terminal])
cf_enable_utf8=yes
AC_ARG_ENABLE(utf8, [ --disable-utf8 disable UTF-8 terminal (saves memory)], cf_enable_utf8="$enableval" )
test "$ac_cv_have_emx" = yes && cf_enable_utf8=no
test "$ac_cv_have_djgpp" = yes && cf_enable_utf8=no
AC_MSG_RESULT($cf_enable_utf8)
if test "$cf_enable_utf8" != no; then
AC_DEFINE(ENABLE_UTF8)
fi
dnl Checks for libraries.
AC_HAVE_FUNCS(clock_gettime)
if test $ac_cv_func_clock_gettime = no; then
AC_CHECK_LIB(rt, clock_gettime)
if test $ac_cv_lib_rt_clock_gettime = yes; then
AC_DEFINE(HAVE_CLOCK_GETTIME)
fi
fi
AC_CHECK_FUNC(socket, cf_result=yes, cf_result=no)
if test "$cf_result" = no; then
AC_CHECK_LIB(socket, socket)
if test "$ac_cv_lib_socket_socket" = no; then
AC_CHECK_LIB(xnet, socket)
if test "$ac_cv_lib_xnet_socket" = no; then
AC_CHECK_LIB(network, socket)
if test "$ac_cv_lib_network_socket" = no; then
AC_CHECK_LIB(watt, socket)
if test "$ac_cv_lib_watt_socket" = no; then
AC_ERROR([socket function not present])
fi
fi
fi
fi
fi
AC_CHECK_FUNC(setsockopt, cf_result=yes, cf_result=no)
if test "$cf_result" = no; then
AC_CHECK_LIB(socket, setsockopt)
fi
AC_CHECK_FUNC(gethostbyname, cf_result=yes, cf_result=no)
if test "$cf_result" = no; then
AC_CHECK_LIB(socket, gethostbyname)
cf_result="$ac_cv_lib_socket_gethostbyname"
if test "$ac_cv_lib_socket_gethostbyname" = no; then
AC_CHECK_LIB(nsl, gethostbyname)
cf_result="$ac_cv_lib_nsl_gethostbyname"
fi
fi
test "$cf_result" = yes && AC_DEFINE(HAVE_GETHOSTBYNAME)
if test "$cf_result" = yes && test "$ac_cv_have_watcom" = yes -o "`uname -s`" = SunOS; then
AC_CACHE_CHECK([for flawed gethostbyname], ac_cv_gethostbyname_bug,
AC_TRY_RUN([
#include <netdb.h>
int main()
{
return !gethostbyname("www.gnu.org");
}
], ac_cv_gethostbyname_bug=no, ac_cv_gethostbyname_bug=yes, ac_cv_gethostbyname_bug="$ac_cv_have_watcom")
)
test "$ac_cv_gethostbyname_bug" = yes && AC_DEFINE(HAVE_GETHOSTBYNAME_BUG)
fi
AC_ARG_WITH(getaddrinfo, [ --without-getaddrinfo compile without getaddrinfo function],[if test "$withval" = no; then disable_getaddrinfo=yes; else disable_getaddrinfo=no; fi])
if test "$disable_getaddrinfo" != yes; then
AC_HAVE_FUNCS(getaddrinfo freeaddrinfo gai_strerror)
if test "$ac_cv_func_getaddrinfo" = yes -a "$ac_cv_func_freeaddrinfo" = yes; then
cf_have_getaddrinfo=yes
else
cf_have_getaddrinfo=no
fi
else
cf_have_getaddrinfo=no
fi
AC_HAVE_FUNCS(inet_ntop inet_pton herror)
AC_ARG_WITH(ipv6, [ --without-ipv6 compile without ipv6],[if test "$withval" = no; then disable_ipv6=yes; else disable_ipv6=no; fi])
AC_CACHE_CHECK([for ipv6], ac_cv_have_ipv6,
AC_TRY_COMPILE([
#include <sys/types.h>
#include <sys/socket.h>
#include <netinet/in.h>
], [
struct sockaddr_in6 sin6;
sin6.sin6_family = AF_INET6;
], ac_cv_have_ipv6=yes, ac_cv_have_ipv6=no)
)
if test "$disable_ipv6" != yes -a "$ac_cv_have_ipv6" = yes -a "$cf_have_getaddrinfo" = yes; then
cf_have_ipv6=yes
AC_DEFINE(SUPPORT_IPV6)
else
cf_have_ipv6=no
fi
AC_CACHE_CHECK([for sockaddr_in6.sin6_scope_id], ac_cv_have_sin6_scope_id,
AC_TRY_COMPILE([
#include <sys/types.h>
#include <sys/socket.h>
#include <netinet/in.h>
], [
struct sockaddr_in6 sin6;
sin6.sin6_scope_id = 0;
], ac_cv_have_sin6_scope_id=yes, ac_cv_have_sin6_scope_id=no)
)
test "$ac_cv_have_sin6_scope_id" = yes && AC_DEFINE(SUPPORT_IPV6_SCOPE)
AC_ARG_WITH(libevent, [ --without-libevent compile without libevent],[if test "$withval" = no; then disable_libevent=yes; else disable_libevent=no; fi])
cf_have_libevent=no
if test "$disable_libevent" != yes; then
AC_CHECK_HEADERS(event.h ev-event.h)
if test "$ac_cv_header_event_h" = yes; then
AC_CHECK_LIB(event, event_loop)
if test "$ac_cv_lib_event_event_loop" = yes; then
cf_have_libevent=libevent
fi
fi
if test "$cf_have_libevent" = no; then
if test "$ac_cv_header_event_h" = yes -o "$ac_cv_header_ev_event_h" = yes; then
AC_CHECK_LIB(ev, event_loop)
if test "$ac_cv_lib_ev_event_loop" = yes; then
cf_have_libevent=libev
fi
fi
fi
fi
if test "$cf_have_libevent" != no; then
AC_HAVE_FUNCS(event_base_set event_get_version event_get_method event_base_free event_base_new event_reinit event_base_get_method event_config_set_flag event_get_struct_event_size)
fi
if test "$cf_use_graphics" != no; then
AC_CHECK_LIB(m, pow)
if test "$ac_cv_lib_m_pow" = no; then
AC_CHECK_LIB(m, main)
fi
AC_CACHE_CHECK([for pow], ac_cv_have_pow,
AC_TRY_LINK([#include <math.h>], [volatile double a = 1.1; volatile double b = 2.2; return pow(a, b);], ac_cv_have_pow=yes, ac_cv_have_pow=no)
)
if test "$ac_cv_have_pow" = yes; then
AC_DEFINE(HAVE_POW)
fi
AC_CACHE_CHECK([for powf], ac_cv_have_powf,
AC_TRY_LINK([#include <math.h>], [volatile float a = 1.1; volatile float b = 2.2; return powf(a, b);], ac_cv_have_powf=yes, ac_cv_have_powf=no)
)
if test "$ac_cv_have_powf" = yes; then
AC_DEFINE(HAVE_POWF)
fi
if test "$ac_cv_have_pow" != yes -a "$ac_cv_have_powf" != yes; then
AC_ERROR([pow and powf functions not present])
fi
fi
AC_ARG_WITH(gpm, [ --without-gpm compile without gpm mouse],[if test "$withval" = no; then disable_gpm=yes; else disable_gpm=no; fi])
if test "$disable_gpm" != yes -a "$ac_cv_have_djgpp" != yes; then
AC_CHECK_HEADERS(gpm.h)
AC_CHECK_LIB(gpm, Gpm_Open)
AC_HAVE_FUNCS(Gpm_GetLibVersion)
if test "$ac_cv_lib_gpm_Gpm_Open" = yes && test "$ac_cv_header_gpm_h" = yes; then
cf_have_gpm=yes
AC_CACHE_CHECK([for Gpm_Event wdx and wdy], ac_cv_have_wdx_wdy,
AC_TRY_COMPILE([
#include <sys/time.h>
#include <gpm.h>
], [
Gpm_Event e;
e.wdx = 1;
e.wdy = 2;
return e.wdx + e.wdy
], ac_cv_have_wdx_wdy=yes, ac_cv_have_wdx_wdy=no)
)
if test "$ac_cv_have_wdx_wdy" = yes; then
AC_DEFINE(HAVE_WDX_WDY)
fi
else
cf_have_gpm=no
fi
else
cf_have_gpm=no
fi
AC_CACHE_CHECK([for OS/2 threads], ac_cv_have_beginthread,
CFLAGS_X="$CFLAGS"
CFLAGS="$CFLAGS -Zmt"
AC_TRY_LINK([#include <stdlib.h>], [_beginthread(NULL, NULL, 0, NULL)], ac_cv_have_beginthread=yes, ac_cv_have_beginthread=no)
CFLAGS="$CFLAGS_X"
)
if test "$ac_cv_have_beginthread" = yes; then
CFLAGS="$CFLAGS -Zmt"
AC_DEFINE(HAVE_BEGINTHREAD)
fi
AC_CHECK_HEADERS(atheos/threads.h)
AC_HAVE_FUNCS(spawn_thread resume_thread)
AC_HAVE_FUNCS(MouOpen _read_kbd)
AC_CACHE_CHECK([for XFree for OS/2], ac_cv_have_x2,
CPPFLAGS_X="$CPPFLAGS"
LIBS_X="$LIBS"
ac_cv_have_x2=no
if test -n "$X11ROOT"; then
CPPFLAGS="$CPPFLAGS_X -I$X11ROOT/XFree86/include"
LIBS="$LIBS_X -L$X11ROOT/XFree86/lib -lxf86_gcc"
AC_TRY_LINK([#include <pty.h>], [struct winsize win;ptioctl(1, TIOCGWINSZ, &win)], ac_cv_have_x2=xf86_gcc, ac_cv_have_x2=no)
if test "$ac_cv_have_x2" = no; then
LIBS="$LIBS_X -L$X11ROOT/XFree86/lib -lxf86"
AC_TRY_LINK([#include <pty.h>], [struct winsize win;ptioctl(1, TIOCGWINSZ, &win)], ac_cv_have_x2=xf86, ac_cv_have_x2=no)
fi
fi
CPPFLAGS="$CPPFLAGS_X"
LIBS="$LIBS_X"
)
if test "$ac_cv_have_x2" != no; then
CPPFLAGS="$CPPFLAGS -I$X11ROOT/XFree86/include"
LIBS="$LIBS -L$X11ROOT/XFree86/lib -l$ac_cv_have_x2"
AC_DEFINE(X2)
fi
cf_result=no
#ifdef HAVE_SSL
ssld=yes
withval=
AC_ARG_WITH(ssl, [ --with-ssl(=directory) enable SSL support
--with-ssl=nss enable SSL support through NSS OpenSSL emulation], [if test "$withval" = no; then disable_ssl=yes; else ssld="$withval"; fi])
AC_ARG_ENABLE(ssl-pkgconfig, [ --disable-ssl-pkgconfig don't use pkgconfig when searching for openssl], cf_openssl_pkgconfig="$enableval", cf_openssl_pkgconfig=yes)
if test -z "$disable_ssl"; then
CPPFLAGS_X="$CPPFLAGS"
LIBS_X="$LIBS"
if test "$static_link" != 0; then
AC_CHECK_LIB(dl, dlopen)
AC_CHECK_LIB(z, inflate)
fi
CPPFLAGS_XX="$CPPFLAGS"
LIBS_XX="$LIBS"
if test "$cf_result" = no && test "$ssld" = yes -o "$ssld" = openssl; then
if test "$cf_openssl_pkgconfig" = no; then
pkgconfig_openssl=no
else
PKG_CHECK_MODULES(OPENSSL, openssl, pkgconfig_openssl=yes, pkgconfig_openssl=no)
if test "$PKG_CONFIG" != no -a "$pkgconfig_openssl" = no; then
AC_MSG_RESULT(no)
fi
fi
if test "$pkgconfig_openssl" = yes; then
AC_MSG_CHECKING([for OpenSSL])
CPPFLAGS="$CPPFLAGS_XX $OPENSSL_CFLAGS"
LIBS="$OPENSSL_LIBS $LIBS_XX"
AC_TRY_LINK([#include <stdio.h>
#include <openssl/ssl.h>], [SSL_CTX_new((void *)0)], cf_result=openssl, cf_result=no)
AC_MSG_RESULT($cf_result)
fi
fi
if test "$cf_result" = no && test "$ssld" != nss; then
AC_MSG_CHECKING([for OpenSSL])
if test "$ssld" = yes -o "$ssld" = openssl; then
ssld=". /usr /usr/local /usr/local/openssl /usr/lib/openssl /usr/local/ssl /usr/local/www /usr/lib/ssl /usr/local /usr/pkg /opt /opt/openssl"
fi
for ssldir in $ssld; do
if test "$cf_result" = no; then
if test ! -z "$ssldir" && test "$ssldir" != /usr && test "$ssldir" != .; then
LIBS="-L$ssldir/lib -lssl -lcrypto $LIBS_XX"
CPPFLAGS="$CPPFLAGS_XX -I$ssldir/include"
else
LIBS="-lssl -lcrypto $LIBS_XX"
CPPFLAGS="$CPPFLAGS_XX"
fi
AC_TRY_LINK([#include <stdio.h>
#include <openssl/ssl.h>], [SSL_CTX_new((void *)0)], cf_result=openssl, cf_result=no)
fi
done
AC_MSG_RESULT($cf_result)
fi
if test "$cf_result" = no && test "$ssld" = yes -o "$ssld" = nss; then
if test "$cf_openssl_pkgconfig" = no; then
pkgconfig_nss=no
else
PKG_CHECK_MODULES(NSS, nss, pkgconfig_nss=yes, pkgconfig_nss=no)
if test "$PKG_CONFIG" != no -a "$pkgconfig_nss" = no; then
AC_MSG_RESULT(no)
fi
fi
if test "$pkgconfig_nss" = no; then
NSS_CFLAGS=""
NSS_LIBS=""
fi
CPPFLAGS="$CPPFLAGS_X $NSS_CFLAGS"
LIBS="-lnss_compat_ossl $NSS_LIBS $LIBS_X"
AC_MSG_CHECKING([for NSS-compat-ossl])
AC_TRY_LINK([#include <nss_compat_ossl/nss_compat_ossl.h>], [SSL_CTX_new((void *)0)], cf_result=nss, cf_result=no)
AC_MSG_RESULT($cf_result)
fi
if test "$cf_result" = no; then
if test -n "$withval" -a "$withval" != no; then
AC_MSG_ERROR("OpenSSL not found")
fi
CPPFLAGS="$CPPFLAGS_X"
LIBS="$LIBS_X"
else
AC_DEFINE(HAVE_SSL)
if test "$cf_result" = openssl; then
AC_DEFINE(HAVE_OPENSSL)
AC_CHECK_HEADERS(openssl/x509v3.h)
fi
if test "$cf_result" = nss; then
AC_DEFINE(HAVE_NSS)
fi
AC_HAVE_FUNCS(ASN1_STRING_get0_data ASN1_STRING_to_UTF8 OPENSSL_cleanup OPENSSL_init_ssl RAND_add RAND_egd RAND_file_name RAND_load_file RAND_write_file SSL_SESSION_is_resumable SSL_get0_verified_chain SSL_get1_peer_certificate SSL_get1_session SSL_load_error_strings SSL_set_security_level X509_check_host X509_check_ip)
AC_CACHE_CHECK([for CRYPTO_set_mem_functions without file/line], ac_cv_have_crypto_set_mem_functions_1,
AC_TRY_LINK([#include <openssl/crypto.h>
static int csmf(void *(*m)(size_t), void *(*r)(void *, size_t), void (*f)(void *)) { return 0; }
], [return (int)(CRYPTO_set_mem_functions - csmf);], ac_cv_have_crypto_set_mem_functions_1=yes, ac_cv_have_crypto_set_mem_functions_1=no)
)
if test "$ac_cv_have_crypto_set_mem_functions_1" = yes; then
AC_DEFINE(HAVE_CRYPTO_SET_MEM_FUNCTIONS_1)
fi
AC_CACHE_CHECK([for CRYPTO_set_mem_functions with file/line], ac_cv_have_crypto_set_mem_functions_2,
AC_TRY_LINK([#include <openssl/crypto.h>
static int csmf(void *(*m)(size_t, const char *, int), void *(*r)(void *, size_t, const char *, int), void (*f)(void *, const char *, int)) { return 0; }
], [return (int)(CRYPTO_set_mem_functions - csmf);], ac_cv_have_crypto_set_mem_functions_2=yes, ac_cv_have_crypto_set_mem_functions_2=no)
)
if test "$ac_cv_have_crypto_set_mem_functions_2" = yes; then
AC_DEFINE(HAVE_CRYPTO_SET_MEM_FUNCTIONS_2)
fi
fi
fi
#endif
cf_have_ssl=$cf_result
AC_ARG_WITH(zlib, [ --without-zlib compile without zlib compression],[if test "$withval" = no; then disable_zlib=yes; else disable_zlib=no; fi])
AC_ARG_WITH(brotli, [ --without-brotli compile without brotli compression],[if test "$withval" = no; then disable_brotli=yes; else disable_brotli=no; fi])
AC_ARG_WITH(zstd, [ --without-zstd compile without zstandard compression],[if test "$withval" = no; then disable_zstd=yes; else disable_zstd=no; fi])
AC_ARG_WITH(bzip2, [ --without-bzip2 compile without bzip2 compression],[if test "$withval" = no; then disable_bzip2=yes; else disable_bzip2=no; fi])
AC_ARG_WITH(lzma, [ --without-lzma compile without lzma compression],[if test "$withval" = no; then disable_lzma=yes; else disable_lzma=no; fi])
AC_ARG_WITH(lzip, [ --without-lzip compile without lzip compression],[if test "$withval" = no; then disable_lzip=yes; else disable_lzip=no; fi])
compression=""
if test "$disable_zlib" != yes; then
AC_CHECK_HEADERS(zlib.h)
AC_CHECK_LIB(z, inflate)
if test "$ac_cv_header_zlib_h" = yes && test "$ac_cv_lib_z_inflate" = yes; then
AC_DEFINE(HAVE_ZLIB)
compression="$compression ZLIB"
fi
fi
if test "$disable_brotli" != yes; then
AC_CHECK_HEADERS(brotli/decode.h)
AC_CHECK_LIB(brotlidec, BrotliDecoderDecompressStream)
if test "$ac_cv_header_brotli_decode_h" = yes && test "$ac_cv_lib_brotlidec_BrotliDecoderDecompressStream" = yes; then
AC_DEFINE(HAVE_BROTLI)
compression="$compression BROTLI"
fi
fi
if test "$disable_zstd" != yes; then
AC_CHECK_HEADERS(zstd.h)
AC_CHECK_LIB(zstd, ZSTD_decompressStream)
if test "$ac_cv_header_zstd_h" = yes && test "$ac_cv_lib_zstd_ZSTD_decompressStream" = yes; then
AC_HAVE_FUNCS(ZSTD_getErrorCode)
AC_DEFINE(HAVE_ZSTD)
compression="$compression ZSTD"
fi
fi
if test "$disable_bzip2" != yes; then
AC_CHECK_HEADERS(bzlib.h)
AC_CHECK_LIB(bz2, BZ2_bzDecompress)
if test "$ac_cv_header_bzlib_h" = yes && test "$ac_cv_lib_bz2_BZ2_bzDecompress" = yes; then
AC_DEFINE(HAVE_BZIP2)
compression="$compression BZIP2"
fi
fi
if test "$disable_lzma" != yes; then
AC_CHECK_HEADERS(lzma.h)
AC_CHECK_LIB(lzma, lzma_auto_decoder)
if test "$ac_cv_header_lzma_h" = yes && test "$ac_cv_lib_lzma_lzma_auto_decoder" = yes; then
AC_DEFINE(HAVE_LZMA)
compression="$compression LZMA"
fi
fi
if test "$disable_lzip" != yes; then
AC_CHECK_HEADERS(lzlib.h)
AC_CHECK_LIB(lz, LZ_decompress_open)
if test "$ac_cv_header_lzlib_h" = yes && test "$ac_cv_lib_lz_LZ_decompress_open" = yes; then
AC_DEFINE(HAVE_LZIP)
compression="$compression LZIP"
fi
fi
cf_have_atheos=no
cf_have_haiku=no
if test "$cf_use_graphics" != no; then
AC_DEFINE(G)