libgomp: Fix up FLOCK fallback handling [PR113192]

My earlier change broke Solaris testing, because @FLOCK@ isn't substituted
just into libgomp/Makefile where it worked, but also the
testsuite/libgomp-site-extra.exp file where Make variables aren't present
and can't be substituted.

The following patch instead computes the absolute srcdir path and uses it
for FLOCK.

2024-01-10  Jakub Jelinek  <jakub@redhat.com>

	PR libgomp/113192
	* configure.ac (FLOCK): Use $libgomp_abs_srcdir/testsuite/flock
	instead of \$(abs_top_srcdir)/testsuite/flock.
	* configure: Regenerated.

(cherry picked from commit 2fb3ee3ee82874e160309344bc3e52afeed8f26a)

diff --git a/libgomp/configure b/libgomp/configure
index 404f7064fd0c1a80986e5d83146baf89681acbb2..389500df738622059761a2fa51455ac283f8905c 100755 (executable)
--- a/libgomp/configure
+++ b/libgomp/configure
@@ -16533,6 +16533,13 @@ done
 
 # Fallback if 'perl' is available.
 if test -z "$FLOCK"; then
+  # These need to be absolute paths, yet at the same time need to
+  # canonicalize only relative paths, because then amd will not unmount
+  # drives. Thus the use of PWDCMD: set it to 'pawd' or 'amq -w' if using amd.
+  case $srcdir in
+    [\\/$]* | ?:[\\/]*) libgomp_abs_srcdir=${srcdir} ;;
+    *) libgomp_abs_srcdir=`cd "$srcdir" && ${PWDCMD-pwd} || echo "$srcdir"` ;;
+  esac
   # Extract the first word of "perl", so it can be a program name with args.
 set dummy perl; ac_word=$2
 { $as_echo "$as_me:${as_lineno-$LINENO}: checking for $ac_word" >&5
@@ -16550,7 +16557,7 @@ do
   test -z "$as_dir" && as_dir=.
     for ac_exec_ext in '' $ac_executable_extensions; do
   if as_fn_executable_p "$as_dir/$ac_word$ac_exec_ext"; then
-    ac_cv_prog_FLOCK="\$(abs_top_srcdir)/testsuite/flock"
+    ac_cv_prog_FLOCK="$libgomp_abs_srcdir/testsuite/flock"
     $as_echo "$as_me:${as_lineno-$LINENO}: found $as_dir/$ac_word$ac_exec_ext" >&5
     break 2
   fi

diff --git a/libgomp/configure.ac b/libgomp/configure.ac
index de7e8159053f24be99869be2bf4208156ef34f28..dd88f20103a82580dc4f9cb5ab19633c0b876b9e 100644 (file)
--- a/libgomp/configure.ac
+++ b/libgomp/configure.ac
@@ -343,7 +343,16 @@ AC_MSG_NOTICE([checking for flock implementation])
 AC_CHECK_PROGS(FLOCK, flock)
 # Fallback if 'perl' is available.
 if test -z "$FLOCK"; then
-  AC_CHECK_PROG(FLOCK, perl, \$(abs_top_srcdir)/testsuite/flock)
+  # These need to be absolute paths, yet at the same time need to
+  # canonicalize only relative paths, because then amd will not unmount
+  # drives. Thus the use of PWDCMD: set it to 'pawd' or 'amq -w' if using amd.
+  case $srcdir in
+changequote(,)dnl
+    [\\/$]* | ?:[\\/]*) libgomp_abs_srcdir=${srcdir} ;;
+changequote([,])dnl
+    *) libgomp_abs_srcdir=`cd "$srcdir" && ${PWDCMD-pwd} || echo "$srcdir"` ;;
+  esac
+  AC_CHECK_PROG(FLOCK, perl, $libgomp_abs_srcdir/testsuite/flock)
 fi
 
 # Get target configury.