[SCM] gawk branch, master, updated. gawk-4.1.0-4893-g79c1b152

[Arnold Robbins]

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http://git.sv.gnu.org/cgit/gawk.git/commit/?id=79c1b1526338396ac62261decb09842e14406794

commit 79c1b1526338396ac62261decb09842e14406794
Author: Arnold D. Robbins <arnold@skeeve.com>
Date:   Tue Aug 23 10:38:27 2022 +0300

    Improve check for -no-pie flag during configuration.

diff --git a/Makefile.in b/Makefile.in
index 194fa8de..7e58cef7 100644
--- a/Makefile.in
+++ b/Makefile.in
@@ -121,6 +121,7 @@ bin_PROGRAMS = gawk$(EXEEXT)
 subdir = .
 ACLOCAL_M4 = $(top_srcdir)/aclocal.m4
 am__aclocal_m4_deps = $(top_srcdir)/m4/arch.m4 \
+       $(top_srcdir)/m4/ax_check_compile_flag.m4 \
        $(top_srcdir)/m4/codeset.m4 $(top_srcdir)/m4/gettext.m4 \
        $(top_srcdir)/m4/host-cpu-c-abi.m4 $(top_srcdir)/m4/iconv.m4 \
        $(top_srcdir)/m4/intlmacosx.m4 $(top_srcdir)/m4/lcmessage.m4 \
diff --git a/aclocal.m4 b/aclocal.m4
index 0891c33d..6de50fec 100644
--- a/aclocal.m4
+++ b/aclocal.m4
@@ -1209,6 +1209,7 @@ AC_SUBST([am__untar])
 ]) # _AM_PROG_TAR
 
 m4_include([m4/arch.m4])
+m4_include([m4/ax_check_compile_flag.m4])
 m4_include([m4/codeset.m4])
 m4_include([m4/gettext.m4])
 m4_include([m4/host-cpu-c-abi.m4])
diff --git a/awklib/Makefile.in b/awklib/Makefile.in
index e6014767..3d4a937c 100644
--- a/awklib/Makefile.in
+++ b/awklib/Makefile.in
@@ -113,6 +113,7 @@ pkglibexec_PROGRAMS = pwcat$(EXEEXT) grcat$(EXEEXT)
 subdir = awklib
 ACLOCAL_M4 = $(top_srcdir)/aclocal.m4
 am__aclocal_m4_deps = $(top_srcdir)/m4/arch.m4 \
+       $(top_srcdir)/m4/ax_check_compile_flag.m4 \
        $(top_srcdir)/m4/codeset.m4 $(top_srcdir)/m4/gettext.m4 \
        $(top_srcdir)/m4/host-cpu-c-abi.m4 $(top_srcdir)/m4/iconv.m4 \
        $(top_srcdir)/m4/intlmacosx.m4 $(top_srcdir)/m4/lcmessage.m4 \
diff --git a/configure b/configure
index 06b0cb1d..7ac5755d 100755
--- a/configure
+++ b/configure
@@ -12588,6 +12588,45 @@ printf "%s\n" "#define HAVE_MBRTOWC 1" >>confdefs.h
   fi
 
 
+{ printf "%s\n" "$as_me:${as_lineno-$LINENO}: checking whether C compiler 
accepts " >&5
+printf %s "checking whether C compiler accepts ... " >&6; }
+if test ${ax_cv_check_cflags__+y}
+then :
+  printf %s "(cached) " >&6
+else $as_nop
+
+  ax_check_save_flags=$CFLAGS
+  CFLAGS="$CFLAGS  "
+  cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h.  */
+
+int
+main (void)
+{
+
+  ;
+  return 0;
+}
+_ACEOF
+if ac_fn_c_try_compile "$LINENO"
+then :
+  ax_cv_check_cflags__=yes
+else $as_nop
+  ax_cv_check_cflags__=no
+fi
+rm -f core conftest.err conftest.$ac_objext conftest.beam conftest.$ac_ext
+  CFLAGS=$ax_check_save_flags
+fi
+{ printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: $ax_cv_check_cflags__" 
>&5
+printf "%s\n" "$ax_cv_check_cflags__" >&6; }
+if test "x$ax_cv_check_cflags__" = xyes
+then :
+  :
+else $as_nop
+  :
+fi
+
+
 
 # The cast to long int works around a bug in the HP C Compiler
 # version HP92453-01 B.11.11.23709.GP, which incorrectly rejects
@@ -12642,17 +12681,45 @@ fi
                use_persistent_malloc=yes
                case $host_os in
                linux-*)
-                       case $CC in
-                       gcc | clang)
-                               LDFLAGS="${LDFLAGS} -no-pie"
+                       { printf "%s\n" "$as_me:${as_lineno-$LINENO}: checking 
whether C compiler accepts -no-pie" >&5
+printf %s "checking whether C compiler accepts -no-pie... " >&6; }
+if test ${ax_cv_check_cflags___no_pie+y}
+then :
+  printf %s "(cached) " >&6
+else $as_nop
+
+  ax_check_save_flags=$CFLAGS
+  CFLAGS="$CFLAGS  -no-pie"
+  cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h.  */
+
+int
+main (void)
+{
+
+  ;
+  return 0;
+}
+_ACEOF
+if ac_fn_c_try_compile "$LINENO"
+then :
+  ax_cv_check_cflags___no_pie=yes
+else $as_nop
+  ax_cv_check_cflags___no_pie=no
+fi
+rm -f core conftest.err conftest.$ac_objext conftest.beam conftest.$ac_ext
+  CFLAGS=$ax_check_save_flags
+fi
+{ printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: 
$ax_cv_check_cflags___no_pie" >&5
+printf "%s\n" "$ax_cv_check_cflags___no_pie" >&6; }
+if test "x$ax_cv_check_cflags___no_pie" = xyes
+then :
+  LDFLAGS="${LDFLAGS} -no-pie"
                                export LDFLAGS
-                               ;;
-                       *)
-                               # tinycc and pcc don't support -no-pie flag
-                               # their executables are non-PIE automatically
-                               # so no need to do anything
-                               ;;
-                       esac
+else $as_nop
+  :
+fi
+
                        ;;
                *darwin*)
                        LDFLAGS="${LDFLAGS} -Xlinker -no_pie"
diff --git a/doc/Makefile.in b/doc/Makefile.in
index b6dd6a1d..31a03039 100644
--- a/doc/Makefile.in
+++ b/doc/Makefile.in
@@ -115,6 +115,7 @@ host_triplet = @host@
 subdir = doc
 ACLOCAL_M4 = $(top_srcdir)/aclocal.m4
 am__aclocal_m4_deps = $(top_srcdir)/m4/arch.m4 \
+       $(top_srcdir)/m4/ax_check_compile_flag.m4 \
        $(top_srcdir)/m4/codeset.m4 $(top_srcdir)/m4/gettext.m4 \
        $(top_srcdir)/m4/host-cpu-c-abi.m4 $(top_srcdir)/m4/iconv.m4 \
        $(top_srcdir)/m4/intlmacosx.m4 $(top_srcdir)/m4/lcmessage.m4 \
diff --git a/extras/Makefile.in b/extras/Makefile.in
index 9ee6e9cd..50acff06 100644
--- a/extras/Makefile.in
+++ b/extras/Makefile.in
@@ -114,6 +114,7 @@ host_triplet = @host@
 subdir = extras
 ACLOCAL_M4 = $(top_srcdir)/aclocal.m4
 am__aclocal_m4_deps = $(top_srcdir)/m4/arch.m4 \
+       $(top_srcdir)/m4/ax_check_compile_flag.m4 \
        $(top_srcdir)/m4/codeset.m4 $(top_srcdir)/m4/gettext.m4 \
        $(top_srcdir)/m4/host-cpu-c-abi.m4 $(top_srcdir)/m4/iconv.m4 \
        $(top_srcdir)/m4/intlmacosx.m4 $(top_srcdir)/m4/lcmessage.m4 \
diff --git a/m4/ChangeLog b/m4/ChangeLog
index 6addbf1a..43625699 100644
--- a/m4/ChangeLog
+++ b/m4/ChangeLog
@@ -1,3 +1,10 @@
+2022-08-23         Arnold D. Robbins     <arnold@skeeve.com>
+
+       * pma.m4: Use AX_CHECK_COMPILE_FLAG to look for -no-pie instead
+       of hardcoding gcc and clang. Thanks to Sam James <sam@gentoo.org>
+       for the suggestion.
+       * ax_check_compile_flag.m4: New file.
+
 2022-08-11         Arnold D. Robbins     <arnold@skeeve.com>
 
        * pma.m4: Logic fix. Don't define USE_PERSITENT_MALLOC until
diff --git a/m4/ax_check_compile_flag.m4 b/m4/ax_check_compile_flag.m4
new file mode 100644
index 00000000..bd753b34
--- /dev/null
+++ b/m4/ax_check_compile_flag.m4
@@ -0,0 +1,53 @@
+# ===========================================================================
+#  https://www.gnu.org/software/autoconf-archive/ax_check_compile_flag.html
+# ===========================================================================
+#
+# SYNOPSIS
+#
+#   AX_CHECK_COMPILE_FLAG(FLAG, [ACTION-SUCCESS], [ACTION-FAILURE], 
[EXTRA-FLAGS], [INPUT])
+#
+# DESCRIPTION
+#
+#   Check whether the given FLAG works with the current language's compiler
+#   or gives an error.  (Warnings, however, are ignored)
+#
+#   ACTION-SUCCESS/ACTION-FAILURE are shell commands to execute on
+#   success/failure.
+#
+#   If EXTRA-FLAGS is defined, it is added to the current language's default
+#   flags (e.g. CFLAGS) when the check is done.  The check is thus made with
+#   the flags: "CFLAGS EXTRA-FLAGS FLAG".  This can for example be used to
+#   force the compiler to issue an error when a bad flag is given.
+#
+#   INPUT gives an alternative input source to AC_COMPILE_IFELSE.
+#
+#   NOTE: Implementation based on AX_CFLAGS_GCC_OPTION. Please keep this
+#   macro in sync with AX_CHECK_{PREPROC,LINK}_FLAG.
+#
+# LICENSE
+#
+#   Copyright (c) 2008 Guido U. Draheim <guidod@gmx.de>
+#   Copyright (c) 2011 Maarten Bosmans <mkbosmans@gmail.com>
+#
+#   Copying and distribution of this file, with or without modification, are
+#   permitted in any medium without royalty provided the copyright notice
+#   and this notice are preserved.  This file is offered as-is, without any
+#   warranty.
+
+#serial 6
+
+AC_DEFUN([AX_CHECK_COMPILE_FLAG],
+[AC_PREREQ(2.64)dnl for _AC_LANG_PREFIX and AS_VAR_IF
+AS_VAR_PUSHDEF([CACHEVAR],[ax_cv_check_[]_AC_LANG_ABBREV[]flags_$4_$1])dnl
+AC_CACHE_CHECK([whether _AC_LANG compiler accepts $1], CACHEVAR, [
+  ax_check_save_flags=$[]_AC_LANG_PREFIX[]FLAGS
+  _AC_LANG_PREFIX[]FLAGS="$[]_AC_LANG_PREFIX[]FLAGS $4 $1"
+  AC_COMPILE_IFELSE([m4_default([$5],[AC_LANG_PROGRAM()])],
+    [AS_VAR_SET(CACHEVAR,[yes])],
+    [AS_VAR_SET(CACHEVAR,[no])])
+  _AC_LANG_PREFIX[]FLAGS=$ax_check_save_flags])
+AS_VAR_IF(CACHEVAR,yes,
+  [m4_default([$2], :)],
+  [m4_default([$3], :)])
+AS_VAR_POPDEF([CACHEVAR])dnl
+])dnl AX_CHECK_COMPILE_FLAGS
diff --git a/m4/pma.m4 b/m4/pma.m4
index fff9a68d..96620ca5 100644
--- a/m4/pma.m4
+++ b/m4/pma.m4
@@ -7,6 +7,7 @@ dnl Decide whether or not to use the persistent memory allocator
 
 AC_DEFUN([GAWK_USE_PERSISTENT_MALLOC],
 [
+AC_REQUIRE([AX_CHECK_COMPILE_FLAG])
 AC_CHECK_SIZEOF([void *])
 use_persistent_malloc=no
 if test "$SKIP_PERSIST_MALLOC" = no && test $ac_cv_sizeof_void_p -eq 8
@@ -18,17 +19,9 @@ then
                use_persistent_malloc=yes
                case $host_os in
                linux-*)
-                       case $CC in
-                       gcc | clang)
-                               LDFLAGS="${LDFLAGS} -no-pie"
-                               export LDFLAGS
-                               ;;
-                       *)
-                               # tinycc and pcc don't support -no-pie flag
-                               # their executables are non-PIE automatically
-                               # so no need to do anything
-                               ;;
-                       esac
+                       AX_CHECK_COMPILE_FLAG([-no-pie],
+                               [LDFLAGS="${LDFLAGS} -no-pie"
+                               export LDFLAGS])
                        ;;
                *darwin*)
                        LDFLAGS="${LDFLAGS} -Xlinker -no_pie"
diff --git a/support/Makefile.in b/support/Makefile.in
index bfa2e9fa..b25e5561 100644
--- a/support/Makefile.in
+++ b/support/Makefile.in
@@ -116,6 +116,7 @@ host_triplet = @host@
 subdir = support
 ACLOCAL_M4 = $(top_srcdir)/aclocal.m4
 am__aclocal_m4_deps = $(top_srcdir)/m4/arch.m4 \
+       $(top_srcdir)/m4/ax_check_compile_flag.m4 \
        $(top_srcdir)/m4/codeset.m4 $(top_srcdir)/m4/gettext.m4 \
        $(top_srcdir)/m4/host-cpu-c-abi.m4 $(top_srcdir)/m4/iconv.m4 \
        $(top_srcdir)/m4/intlmacosx.m4 $(top_srcdir)/m4/lcmessage.m4 \
diff --git a/test/Makefile.in b/test/Makefile.in
index c8edbb43..6aa3badb 100644
--- a/test/Makefile.in
+++ b/test/Makefile.in
@@ -113,6 +113,7 @@ host_triplet = @host@
 subdir = test
 ACLOCAL_M4 = $(top_srcdir)/aclocal.m4
 am__aclocal_m4_deps = $(top_srcdir)/m4/arch.m4 \
+       $(top_srcdir)/m4/ax_check_compile_flag.m4 \
        $(top_srcdir)/m4/codeset.m4 $(top_srcdir)/m4/gettext.m4 \
        $(top_srcdir)/m4/host-cpu-c-abi.m4 $(top_srcdir)/m4/iconv.m4 \
        $(top_srcdir)/m4/intlmacosx.m4 $(top_srcdir)/m4/lcmessage.m4 \

-----------------------------------------------------------------------

Summary of changes:
 Makefile.in                 |  1 +
 aclocal.m4                  |  1 +
 awklib/Makefile.in          |  1 +
 configure                   | 87 +++++++++++++++++++++++++++++++++++++++------
 doc/Makefile.in             |  1 +
 extras/Makefile.in          |  1 +
 m4/ChangeLog                |  7 ++++
 m4/ax_check_compile_flag.m4 | 53 +++++++++++++++++++++++++++
 m4/pma.m4                   | 15 +++-----
 support/Makefile.in         |  1 +
 test/Makefile.in            |  1 +
 11 files changed, 148 insertions(+), 21 deletions(-)
 create mode 100644 m4/ax_check_compile_flag.m4


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