[bison.git] / m4 / glibc21.m4

#serial 2

# Test for the GNU C Library, version 2.1 or newer.
# From Bruno Haible.

AC_DEFUN([jm_GLIBC21],
  [
    AC_CACHE_CHECK(whether we are using the GNU C Library 2.1 or newer,
      ac_cv_gnu_library_2_1,
      [AC_EGREP_CPP([Lucky GNU user],
	[
#include <features.h>
#ifdef __GNU_LIBRARY__
 #if (__GLIBC__ == 2 && __GLIBC_MINOR__ >= 1) || (__GLIBC__ > 2)
  Lucky GNU user
 #endif
#endif
	],
	ac_cv_gnu_library_2_1=yes,
	ac_cv_gnu_library_2_1=no)
      ]
    )
    AC_SUBST(GLIBC21)
    GLIBC21="$ac_cv_gnu_library_2_1"
  ]
)
Commit	Line	Data
1e24cc5b AD	1	#serial 2
	2
	3	# Test for the GNU C Library, version 2.1 or newer.
	4	# From Bruno Haible.
	5
	6	AC_DEFUN([jm_GLIBC21],
	7	[
	8	AC_CACHE_CHECK(whether we are using the GNU C Library 2.1 or newer,
	9	ac_cv_gnu_library_2_1,
	10	[AC_EGREP_CPP([Lucky GNU user],
	11	[
	12	#include <features.h>
	13	#ifdef __GNU_LIBRARY__
	14	#if (__GLIBC__ == 2 && __GLIBC_MINOR__ >= 1) \|\| (__GLIBC__ > 2)
	15	Lucky GNU user
	16	#endif
	17	#endif
	18	],
	19	ac_cv_gnu_library_2_1=yes,
	20	ac_cv_gnu_library_2_1=no)
	21	]
	22	)
	23	AC_SUBST(GLIBC21)
	24	GLIBC21="$ac_cv_gnu_library_2_1"
	25	]
	26	)