Issue#105: Rename configure.in to configure.ac

configure.ac

@@ -0,0 +1,60 @@
+AC_PREREQ(2.52)
+
+# Process this file with autoconf to produce a configure script.
+AC_INIT([json-c], 0.11.99, [json-c@googlegroups.com])
+
+AM_INIT_AUTOMAKE(AC_PACKAGE_NAME, AC_PACKAGE_VERSION)
+
+AC_PROG_MAKE_SET
+
+# Checks for programs.
+
+# Checks for libraries.
+
+# Checks for header files.
+AC_CONFIG_HEADER(config.h)
+AC_CONFIG_HEADER(json_config.h)
+AC_HEADER_STDC
+AC_CHECK_HEADERS(fcntl.h limits.h strings.h syslog.h unistd.h [sys/cdefs.h] [sys/param.h] stdarg.h locale.h)
+AC_CHECK_HEADER(inttypes.h,[AC_DEFINE([JSON_C_HAVE_INTTYPES_H],[1],[Public define for json_inttypes.h])])
+
+# Checks for typedefs, structures, and compiler characteristics.
+AC_C_CONST
+AC_TYPE_SIZE_T
+
+# Checks for library functions.
+AC_FUNC_VPRINTF
+AC_FUNC_MEMCMP
+AC_FUNC_MALLOC
+AC_FUNC_REALLOC
+AC_CHECK_FUNCS(strcasecmp strdup strerror snprintf vsnprintf vasprintf open vsyslog strncasecmp setlocale)
+
+#check if .section.gnu.warning accepts long strings (for __warn_references)
+AC_LANG_PUSH([C])
+
+AC_MSG_CHECKING([if .gnu.warning accepts long strings])
+AC_LINK_IFELSE([[
+extern void json_object_get();
+__asm__(".section .gnu.json_object_get,\n\t.ascii \"Please link against libjson-c instead of libjson\"\n\t.text");
+
+int main(int c,char* v) {return 0;}
+]], [
+    AC_DEFINE(HAS_GNU_WARNING_LONG, 1, [Define if .gnu.warning accepts long strings.])
+    AC_MSG_RESULT(yes)
+], [
+   AC_MSG_RESULT(no)
+])
+
+AC_LANG_POP([C])
+
+AM_PROG_LIBTOOL
+
+AC_CONFIG_FILES([
+Makefile
+json-c.pc
+tests/Makefile
+json-c-uninstalled.pc
+])
+
+AC_OUTPUT
+