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autoconf: #include <libintl.h> when checking for gettext() 

Some libc implementations like uclibc or musl provides
gettext stubs via libintl library but this case is not checked
by AC_CHECK_LIB(c, gettext ...) because gcc has gettext as builtin
which passess the check.

So check it with included libintl.h where gettext may unfold into
libintl_gettext which will cause check to fail if libintl_gettext are
needed to be linked with -lintl.

Signed-off-by: Vadim Kochan <vadim4j@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
This commit is contained in:
Vadim Kochan 2019-04-18 08:04:19 +03:00 committed by Junio C Hamano
parent aeb582a983
commit b71e56a683
1 changed files with 13 additions and 3 deletions
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16
configure.ac
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@ -763,9 +763,19 @@ AC_CHECK_LIB([c], [basename],
GIT_CONF_SUBST([NEEDS_LIBGEN])
test -n "$NEEDS_LIBGEN" && LIBS="$LIBS -lgen"
AC_CHECK_LIB([c], [gettext],
[LIBC_CONTAINS_LIBINTL=YesPlease],
[LIBC_CONTAINS_LIBINTL=])
AC_DEFUN([LIBINTL_SRC], [
AC_LANG_PROGRAM([[
#include <libintl.h>
]],[[
char *msg = gettext("test");
]])])
AC_MSG_CHECKING([if libc contains libintl])
AC_LINK_IFELSE([LIBINTL_SRC],
[AC_MSG_RESULT([yes])
LIBC_CONTAINS_LIBINTL=YesPlease],
[AC_MSG_RESULT([no])
LIBC_CONTAINS_LIBINTL=])
GIT_CONF_SUBST([LIBC_CONTAINS_LIBINTL])
#