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authorJörg Frings-Fürst <debian@jff.email>2024-03-24 08:54:48 +0100
committerJörg Frings-Fürst <debian@jff.email>2024-03-24 08:54:48 +0100
commit163a663518f33bab48b28431972e580b366b4d49 (patch)
treef518ffabaca4a0b93f0103d617e803792d3b0b43 /gnulib-m4/error_h.m4
parent1b3a8d5ad2ea2f099d514d9dd51ebf926a628076 (diff)
parentdd0000f7e25abe6c28d4329d324fd7fcab54094f (diff)
Merge branch 'release/debian/1.2-1'HEADdebian/1.2-1master
Diffstat (limited to 'gnulib-m4/error_h.m4')
-rw-r--r--gnulib-m4/error_h.m4124
1 files changed, 124 insertions, 0 deletions
diff --git a/gnulib-m4/error_h.m4 b/gnulib-m4/error_h.m4
new file mode 100644
index 00000000..006770c4
--- /dev/null
+++ b/gnulib-m4/error_h.m4
@@ -0,0 +1,124 @@
+# error_h.m4 serial 4
+dnl Copyright (C) 1996-2024 Free Software Foundation, Inc.
+dnl This file is free software; the Free Software Foundation
+dnl gives unlimited permission to copy and/or distribute it,
+dnl with or without modifications, as long as this notice is preserved.
+
+dnl From Bruno Haible.
+dnl Provide a working <error.h>.
+
+AC_DEFUN_ONCE([gl_ERROR_H],
+[
+ AC_REQUIRE([AC_CANONICAL_HOST]) dnl for cross-compiles
+
+ gl_CHECK_NEXT_HEADERS([error.h])
+ if test $ac_cv_header_error_h = yes; then
+ HAVE_ERROR_H=1
+ else
+ HAVE_ERROR_H=0
+ fi
+ AC_SUBST([HAVE_ERROR_H])
+
+ REPLACE_ERROR=0
+
+ gl_CHECK_FUNCS_ANDROID([error], [[#include <error.h>]])
+ if test $ac_cv_func_error = yes; then
+ HAVE_ERROR=1
+ else
+ HAVE_ERROR=0
+ case "$gl_cv_onwards_func_error" in
+ future*) REPLACE_ERROR=1 ;;
+ esac
+ fi
+
+ dnl We don't use AC_FUNC_ERROR_AT_LINE any more, because it is no longer
+ dnl maintained in Autoconf and because it invokes AC_LIBOBJ.
+ dnl We need to notice a missing declaration, like gl_CHECK_FUNCS_ANDROID does.
+ AC_CHECK_DECL([error_at_line], , , [[#include <error.h>]])
+ if test $ac_cv_have_decl_error_at_line = yes; then
+ AC_CACHE_CHECK([for error_at_line], [ac_cv_lib_error_at_line],
+ [AC_LINK_IFELSE(
+ [AC_LANG_PROGRAM(
+ [[#include <error.h>]],
+ [[error_at_line (0, 0, "", 0, "an error occurred");]])],
+ [ac_cv_lib_error_at_line=yes],
+ [ac_cv_lib_error_at_line=no])])
+ else
+ ac_cv_lib_error_at_line=no
+ fi
+ if test $ac_cv_lib_error_at_line = yes; then
+ HAVE_ERROR_AT_LINE=1
+ else
+ HAVE_ERROR_AT_LINE=0
+ fi
+ REPLACE_ERROR_AT_LINE=0
+
+ if test $ac_cv_func_error = yes && test $ac_cv_lib_error_at_line = yes; then
+ dnl On Android 11, when error_print_progname is set, the output of the
+ dnl error() function contains an extra space.
+ AC_CACHE_CHECK([for working error function],
+ [gl_cv_func_working_error],
+ [if test $cross_compiling != yes; then
+ AC_LINK_IFELSE(
+ [AC_LANG_PROGRAM([[
+ #include <error.h>
+ static void print_no_progname (void) {}
+ ]], [[
+ error_print_progname = print_no_progname;
+ error (0, 0, "foo");
+ ]])
+ ],
+ [rm -f conftest.out
+ if test -s conftest$ac_exeext \
+ && ./conftest$ac_exeext 2> conftest.out; then
+ if grep ' ' conftest.out >/dev/null; then
+ gl_cv_func_working_error=no
+ else
+ gl_cv_func_working_error=yes
+ fi
+ else
+ gl_cv_func_working_error=no
+ fi
+ rm -f conftest.out
+ ],
+ [gl_cv_func_working_error=no])
+ else
+ AC_COMPILE_IFELSE(
+ [AC_LANG_PROGRAM([[
+ #include <error.h>
+ ]], [[
+ error (0, 0, "foo");
+ ]])
+ ],
+ [case "$host_os" in
+ # Guess yes on glibc systems.
+ *-gnu* | gnu*) gl_cv_func_working_error="guessing yes" ;;
+ # Guess no on Android.
+ linux*-android*) gl_cv_func_working_error="guessing no" ;;
+ # If we don't know, obey --enable-cross-guesses.
+ *) gl_cv_func_working_error="$gl_cross_guess_normal" ;;
+ esac
+ ],
+ [gl_cv_func_working_error=no])
+ fi
+ ])
+ case "$gl_cv_func_working_error" in
+ *no)
+ REPLACE_ERROR=1
+ REPLACE_ERROR_AT_LINE=1
+ ;;
+ esac
+ fi
+
+ if test $HAVE_ERROR = 0 || test $REPLACE_ERROR = 1 \
+ || test $HAVE_ERROR_AT_LINE = 0 || test $REPLACE_ERROR_AT_LINE = 1; then
+ COMPILE_ERROR_C=1
+ else
+ COMPILE_ERROR_C=0
+ fi
+
+ AC_SUBST([HAVE_ERROR])
+ AC_SUBST([HAVE_ERROR_AT_LINE])
+ AC_SUBST([REPLACE_ERROR])
+ AC_SUBST([REPLACE_ERROR_AT_LINE])
+])