mirror/json-c
1
0
Fork 0
mirror of https://github.com/json-c/json-c.git synced 2026-04-09 07:19:06 +08:00
Code Issues Packages Projects Releases Wiki Activity

Add an autoconf test to test whether the .section .gnu<warning>

Browse Source 
works with the linker on the system, and define _warn_references
to nothing if not.
This commit is contained in:
Lin Xu
2012-09-09 17:33:35 -07:00
parent 4b1a0668a8
commit e7e0600405
3 changed files with 25 additions and 8 deletions
Download Patch File Download Diff File Expand all files Collapse all files

18
configure.in
View File

@@ -37,6 +37,24 @@ AC_FUNC_MALLOC
AC_FUNC_REALLOC
AC_CHECK_FUNCS(strcasecmp strdup strndup strerror snprintf vsnprintf vasprintf open vsyslog strncasecmp)
#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([