Revision 9b0a0ba9 configure.in

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configure.in
56 56
	bird_cflags_default=yes
57 57
fi
58 58

  
59
AC_PROG_CC
59
AC_PROG_CC_C99
60 60
if test -z "$GCC" ; then
61 61
	AC_MSG_ERROR([This program requires the GNU C Compiler.])
62 62
fi
......
220 220

  
221 221
if test "$enable_debug" = yes ; then
222 222
	AC_DEFINE(DEBUGGING)
223
	AC_CHECK_HEADER(execinfo.h, [AC_SEARCH_LIBS([backtrace, backtrace_symbols], [c execinfo], [AC_DEFINE(HAVE_EXECINFO_H)])])
224
	LDFLAGS="$LDFLAGS -rdynamic"
225
	CFLAGS="$CFLAGS -O0 -ggdb -g3 -gdwarf-4"
223 226
	if test "$enable_memcheck" = yes ; then
224 227
		AC_CHECK_LIB(dmalloc, dmalloc_debug)
225 228
		if test $ac_cv_lib_dmalloc_dmalloc_debug != yes ; then

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