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107 lines
3.2 KiB
107 lines
3.2 KiB
AC_PREREQ(2.52) |
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# Process this file with autoconf to produce a configure script. |
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AC_INIT([json-c], 0.12.99, [json-c@googlegroups.com]) |
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AM_INIT_AUTOMAKE |
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AC_PROG_MAKE_SET |
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AC_ARG_ENABLE(rdrand, |
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AS_HELP_STRING([--enable-rdrand], |
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[Enable RDRAND Hardware RNG Hash Seed generation on supported x86/x64 platforms.]), |
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[if test x$enableval = xyes; then |
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enable_rdrand=yes |
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AC_DEFINE(ENABLE_RDRAND, 1, [Enable RDRANR Hardware RNG Hash Seed]) |
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fi]) |
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if test "x$enable_rdrand" = "xyes"; then |
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AC_MSG_RESULT([RDRAND Hardware RNG Hash Seed enabled on supported x86/x64 platforms]) |
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else |
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AC_MSG_RESULT([RDRAND Hardware RNG Hash Seed disabled. Use --enable-rdrand to enable]) |
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fi |
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# Checks for programs. |
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# Checks for libraries. |
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# Checks for header files. |
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AM_PROG_CC_C_O |
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AC_CONFIG_HEADER(config.h) |
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AC_CONFIG_HEADER(json_config.h) |
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AC_HEADER_STDC |
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AC_CHECK_HEADERS(fcntl.h limits.h strings.h syslog.h unistd.h [sys/cdefs.h] [sys/param.h] stdarg.h locale.h endian.h) |
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AC_CHECK_HEADER(inttypes.h,[AC_DEFINE([JSON_C_HAVE_INTTYPES_H],[1],[Public define for json_inttypes.h])]) |
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# Checks for typedefs, structures, and compiler characteristics. |
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AC_C_CONST |
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AC_TYPE_SIZE_T |
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# Checks for library functions. |
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AC_FUNC_VPRINTF |
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AC_FUNC_MEMCMP |
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AC_FUNC_MALLOC |
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AC_FUNC_REALLOC |
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AC_CHECK_FUNCS(strcasecmp strdup strerror snprintf vsnprintf vasprintf open vsyslog strncasecmp setlocale) |
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AC_CHECK_DECLS([INFINITY], [], [], [[#include <math.h>]]) |
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AC_CHECK_DECLS([nan], [], [], [[#include <math.h>]]) |
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AC_CHECK_DECLS([isnan], [], [], [[#include <math.h>]]) |
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AC_CHECK_DECLS([isinf], [], [], [[#include <math.h>]]) |
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AC_CHECK_DECLS([_isnan], [], [], [[#include <float.h>]]) |
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AC_CHECK_DECLS([_finite], [], [], [[#include <float.h>]]) |
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#check if .section.gnu.warning accepts long strings (for __warn_references) |
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AC_LANG_PUSH([C]) |
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AC_MSG_CHECKING([if .gnu.warning accepts long strings]) |
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AC_LINK_IFELSE([AC_LANG_SOURCE([[ |
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extern void json_object_get(); |
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__asm__(".section .gnu.json_object_get,\n\t.ascii \"Please link against libjson-c instead of libjson\"\n\t.text"); |
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int main(int c,char* v) {return 0;} |
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]])], [ |
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AC_DEFINE(HAS_GNU_WARNING_LONG, 1, [Define if .gnu.warning accepts long strings.]) |
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AC_MSG_RESULT(yes) |
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], [ |
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AC_MSG_RESULT(no) |
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]) |
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AC_LANG_POP([C]) |
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AM_PROG_LIBTOOL |
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# Check for the -Bsymbolic-functions linker flag |
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AC_ARG_ENABLE([Bsymbolic], |
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[AS_HELP_STRING([--disable-Bsymbolic], [Avoid linking with -Bsymbolic-function])], |
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[], |
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[enable_Bsymbolic=check]) |
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AS_IF([test "x$enable_Bsymbolic" = "xcheck"], |
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[ |
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saved_LDFLAGS="${LDFLAGS}" |
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AC_MSG_CHECKING([for -Bsymbolic-functions linker flag]) |
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LDFLAGS=-Wl,-Bsymbolic-functions |
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AC_TRY_LINK([], [int main (void) { return 0; }], |
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[ |
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AC_MSG_RESULT([yes]) |
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enable_Bsymbolic=yes |
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], |
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[ |
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AC_MSG_RESULT([no]) |
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enable_Bsymbolic=no |
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]) |
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LDFLAGS="${saved_LDFLAGS}" |
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]) |
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AS_IF([test "x$enable_Bsymbolic" = "xyes"], [JSON_BSYMBOLIC_LDFLAGS=-Wl[,]-Bsymbolic-functions]) |
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AC_SUBST(JSON_BSYMBOLIC_LDFLAGS) |
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AC_CONFIG_FILES([ |
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Makefile |
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json-c.pc |
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tests/Makefile |
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json-c-uninstalled.pc |
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]) |
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AC_OUTPUT |
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