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Detect glob_pattern_p()
The current popt build system tests the existence of <glob.h>, and
then assumes that if __GLIBC__ is defined, then glob_pattern_p() must
be available. Unfortunately, that's not true with uClibc: <glob.h> may
be installed, but not necessarily the GNU glob extensions... and
uClibc defines __GLIBC__. This is causing build issues with certain
uClibc toolchains that do not have GNU glob extensions enabled.
To fix this, this patch adds an AC_CHECK_FUNCS() test for
glob_pattern_p, and uses that to find out whether glob_pattern_p() is
available or not.
Signed-off-by: Thomas Petazzoni <thomas.petazzoni@free-electrons.com>
Index: b/configure.ac
===================================================================
--- a/configure.ac
+++ b/configure.ac
@@ -81,7 +81,7 @@
AC_CHECK_FUNC(setreuid, [], [
AC_CHECK_LIB(ucb, setreuid, [if echo $LIBS | grep -- -lucb >/dev/null ;then :; else LIBS="$LIBS -lc -lucb" USEUCB=y;fi])
])
-AC_CHECK_FUNCS(getuid geteuid iconv mtrace __secure_getenv setregid stpcpy strerror vasprintf srandom)
+AC_CHECK_FUNCS(getuid geteuid iconv mtrace __secure_getenv setregid stpcpy strerror vasprintf srandom glob_pattern_p)
AM_GNU_GETTEXT([external])
AM_ICONV_LINK
Index: b/poptconfig.c
===================================================================
--- a/poptconfig.c
+++ b/poptconfig.c
@@ -42,7 +42,7 @@
/*@=declundef =exportheader =incondefs =protoparammatch =redecl =type @*/
#endif /* __LCLINT__ */
-#if !defined(__GLIBC__)
+#if !defined(HAVE_GLOB_PATTERN_P)
/* Return nonzero if PATTERN contains any metacharacters.
Metacharacters can be quoted with backslashes if QUOTE is nonzero. */
static int
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