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From: Ileana Dumitrescu
Date: Tue, 27 Aug 2024 11:33:33 -0400 (EDT)

branch: master
commit 0e1b33332429cd578367bd0ad420c065d5caf0ac
Author: Sergey Poznyakoff <gray@gnu.org.ua>
AuthorDate: Tue Jun 11 13:20:15 2024 +0200

    ltmain: Use shared objects built in source tree
    
    It has been discovered that under certain conditions libtool creates
    wrappers that prefer installed versions of the shared objects over
    those built in the source tree. As a result, any tests run in the
    source tree produce unreliable results.
    
    * build-aux/ltmain.in: Alter to use shared objects in source tree
      instead of installed.
    * Makefile.am: Added in tests/bug_71489.at.
    * tests/bug_71489.at: Contains test case for bug 71489.
---
 Makefile.am         |   1 +
 build-aux/ltmain.in |  33 ++++-
 tests/bug_71489.at  | 391 ++++++++++++++++++++++++++++++++++++++++++++++++++++
 3 files changed, 420 insertions(+), 5 deletions(-)

diff --git a/Makefile.am b/Makefile.am
index 8cc621ea..993a6e84 100644
--- a/Makefile.am
+++ b/Makefile.am
@@ -728,6 +728,7 @@ TESTSUITE_AT        = tests/testsuite.at \
                  tests/stresstest.at \
                  tests/cmdline_wrap.at \
                  tests/bug_62343.at    \
+                 tests/bug_71489.at \
                  $(NOTHING_ELSE)
 
 EXTRA_DIST     += $(testsuite) $(TESTSUITE_AT) $(package_m4)
diff --git a/build-aux/ltmain.in b/build-aux/ltmain.in
index 63377541..fb43fef0 100644
--- a/build-aux/ltmain.in
+++ b/build-aux/ltmain.in
@@ -4672,10 +4672,12 @@ func_mode_link ()
     xrpath=
     perm_rpath=
     temp_rpath=
+    temp_rpath_tail=
     thread_safe=no
     vinfo=
     vinfo_number=no
     weak_libs=
+    rpath_arg=
     single_module=$wl-single_module
     func_infer_tag $base_compile
 
@@ -5594,8 +5596,20 @@ func_mode_link ()
 
       # Now actually substitute the argument into the commands.
       if test -n "$arg"; then
-       func_append compile_command " $arg"
-       func_append finalize_command " $arg"
+       if test -n "$rpath_arg"; then
+          func_append finalize_rpath " ${arg##*,}"
+         unset rpath_arg
+       else
+         case $arg in
+          -Wl,-rpath,*)
+           func_append finalize_rpath " ${arg##*,}";;
+          -Wl,-rpath)
+           rpath_arg=1;;
+          *)
+            func_append compile_command " $arg"
+           func_append finalize_command " $arg"
+         esac
+        fi
       fi
     done # argument parsing loop
 
@@ -6246,7 +6260,10 @@ func_mode_link ()
              # Make sure the rpath contains only unique directories.
              case $temp_rpath: in
              *"$absdir:"*) ;;
-             *) func_append temp_rpath "$absdir:" ;;
+              *) case $absdir in
+                 "$progdir/"*) func_append temp_rpath "$absdir:" ;;
+                 *)            func_append temp_rpath_tail "$absdir:" ;;
+                 esac
              esac
            fi
 
@@ -6258,7 +6275,9 @@ func_mode_link ()
            *)
              case "$compile_rpath " in
              *" $absdir "*) ;;
-             *) func_append compile_rpath " $absdir" ;;
+             *) case $absdir in
+                 "$progdir/"*) func_append compile_rpath " $absdir" ;;
+                esac
              esac
              ;;
            esac
@@ -6332,7 +6351,9 @@ func_mode_link ()
            *)
              case "$compile_rpath " in
              *" $absdir "*) ;;
-             *) func_append compile_rpath " $absdir" ;;
+             *) case $absdir in
+                 "$progdir/"*) func_append compile_rpath " $absdir" ;;
+                esac
              esac
              ;;
            esac
@@ -6693,6 +6714,8 @@ func_mode_link ()
          fi # link_all_deplibs != no
        fi # linkmode = lib
       done # for deplib in $libs
+
+      func_append temp_rpath "$temp_rpath_tail"
       if test link = "$pass"; then
        if test prog = "$linkmode"; then
          compile_deplibs="$new_inherited_linker_flags $compile_deplibs"
diff --git a/tests/bug_71489.at b/tests/bug_71489.at
new file mode 100644
index 00000000..adb5db75
--- /dev/null
+++ b/tests/bug_71489.at
@@ -0,0 +1,391 @@
+# bug_71489.at test local version of installed program is used
+
+## --------------------- ##
+##      Bug testing      ##
+## --------------------- ##
+
+AT_BANNER([Testing bug 71489:])
+
+AT_SETUP([Use local version])
+
+AT_KEYWORDS([bug_71489])
+
+# Create root test directory.
+top_dir=test71489_1
+mkdir $top_dir
+top_dir=$(cd $top_dir; pwd)
+
+# Create the libtool library that the program will depend on.
+lib=$top_dir/lib
+mkdir $lib
+
+# Create the external library. This is a very simple autotools program, which
+# contains one function.
+AT_DATA([[$lib/Makefile.am]],
+[[
+lib_LTLIBRARIES = libltb1.la
+libltb1_la_SOURCES = libltb1.c
+libltb1_la_CPPFLAGS=-I$(top_srcdir)
+]])
+
+AT_DATA([["$lib/libltb1.c"]],
+[[
+#include <stdio.h>
+
+void
+ltb_version (void)
+{
+  printf ("ltbug: %s\n", LTBUG_ID);
+}
+]])
+
+# Create src directory, which is linked to the library created above.
+src=$top_dir/src
+mkdir $src
+
+AT_DATA([["$src/Makefile.am"]],
+[[
+bin_PROGRAMS = ltb1
+ltb1_SOURCES = main.c
+ltb1_LDFLAGS = $(CF_LIB_FLAGS)
+ltb1_LDADD = ../lib/libltb1.la
+AM_CPPFLAGS = -I$(top_srcdir)
+]])
+
+AT_DATA([["$src/main.c"]],
+[[
+#include <ltb1.h>
+
+int
+main (int argc, char **argv)
+{
+  ltb_version ();
+  return 0;
+}
+]])
+
+# Create root autotools files and code.
+AT_DATA([["$top_dir/Makefile.am"]],
+[[
+ACLOCAL_AMFLAGS = -I m4
+SUBDIRS = lib src
+noinst_HEADERS = ltb1.h
+EXTRA_DIST = test.sh
+]])
+
+AT_DATA([["$top_dir/configure.ac"]],
+[[
+AC_PREREQ([2.69])
+AC_INIT([ltbug], ]AT_PACKAGE_VERSION[, 
]AT_PACKAGE_BUGREPORT[)AC_CONFIG_SRCDIR([src/main.c])
+AC_CONFIG_AUX_DIR([build-aux])
+AC_CONFIG_MACRO_DIR([m4])
+
+AM_INIT_AUTOMAKE([foreign])
+
+# Checks for programs.
+AC_PROG_CC
+LT_PREREQ([2.4.6])
+LT_INIT
+
+AC_ARG_VAR([LTBUG_ID],[Identifier of the bug case])
+if test -z "$LTBUG_ID"; then
+  LTBUG_ID=local
+fi
+AC_DEFINE_UNQUOTED([LTBUG_ID],["$LTBUG_ID"],
+ [Text string identifying the library])
+
+AC_SUBST([CF_LIB_FLAGS],['-L$(libdir) -Wl,-rpath -Wl,$(libdir)'])
+
+AC_CONFIG_FILES([Makefile lib/Makefile src/Makefile])
+
+AC_OUTPUT
+]])
+
+AT_DATA([["$top_dir/ltb1.h"]],
+[[
+extern void ltb_version (void);
+extern void ltb2_version (void);
+]])
+
+echo "Running autoreconf on project directory"
+(
+    cd $top_dir
+    pwd
+    LT_AT_LIBTOOLIZE([--install])
+    LT_AT_AUTORECONF([-i])
+)
+
+# Create two directories, one which has the local copy and one which has
+# the installed copy.
+mkdir build_inst build_local prefix_dir
+
+prefix=$(cd prefix_dir; pwd)
+
+echo "Building and installing library"
+(
+    cd build_inst
+    LT_AT_CONFIGURE([--prefix=$prefix  LTBUG_ID='installed'], 
[$top_dir/configure])
+    LT_AT_MAKE([])
+    LT_AT_MAKE([install])
+)
+
+echo "Building local copy of the project"
+(
+    cd build_local
+    LT_AT_CONFIGURE([--prefix=$prefix], [$top_dir/configure])
+    LT_AT_MAKE([])
+    LT_AT_MAKE([install])
+)
+
+# Although we have installed ltbug, we still expect that we are using the 
local version.
+cat > expout <<EOF
+ltbug: local
+EOF
+
+case $host_os in
+mingw* | windows*)
+  awk '{printf ("%s\r\n", [$]0);}' < expout > expout.t && mv -f expout.t expout
+  ;;
+cygwin*)
+  awk '{printf ("%s\n", [$]0);}' < expout > expout.t && mv -f expout.t expout
+  ;;
+esac
+
+build_local/src/ltb1 > stdout
+
+echo "Comparing expout to the build binary"
+AT_CHECK([cmp -s stdout expout], [0])
+
+rm -rf $top_dir $lib $src build_inst build_local prefix_dir
+
+# Test local version of installed program is used with external library.
+
+# Create root test directory.
+top_dir=test71489_2
+mkdir $top_dir
+top_dir=$(cd $top_dir; pwd)
+
+ext_lib_dir=$top_dir/ltb2dep
+ltb2=$top_dir/ltb2
+
+# Create ltb2 directory. This will contain two libraries,
+# liba and libb. liba will depend on an external libtool library.
+mkdir $ltb2
+
+# Create the directory which will contain the external dependency liba relies 
on.
+mkdir $ext_lib_dir
+
+# Create the external library. This is a very simple autotools program, which
+# contains one function.
+AT_DATA([[$ext_lib_dir/configure.ac]],
+[[
+AC_PREREQ([2.69])
+AC_INIT([libltb2dep], ]AT_PACKAGE_VERSION[, ]AT_PACKAGE_BUGREPORT[)
+AC_CONFIG_SRCDIR([main.c])
+AC_CONFIG_AUX_DIR([build-aux])
+AC_CONFIG_MACRO_DIR([m4])
+
+AM_INIT_AUTOMAKE([foreign])
+
+AC_PROG_CC
+LT_PREREQ([2.4.6])
+LT_INIT
+
+AC_ARG_VAR([LTBUG_ID],[Identifier of the bug case])
+if test -z "$LTBUG_ID"; then
+  LTBUG_ID="local version"
+fi
+AC_DEFINE_UNQUOTED([LTBUG_ID],["$LTBUG_ID"],
+ [Text string identifying the library])
+
+AC_CONFIG_FILES([Makefile])
+
+AC_OUTPUT
+]])
+
+
+AT_DATA([["$ext_lib_dir/Makefile.am"]],
+[[
+lib_LTLIBRARIES = libltb2dep.la
+libltb2dep_la_SOURCES = main.c
+]])
+
+AT_DATA([["$ext_lib_dir/main.c"]],
+[[
+#include <stdio.h>
+void
+dummy (void)
+{
+}
+]])
+
+# Create liba, which is linked to the external library created above.
+mkdir "$ltb2/liba"
+
+AT_DATA([["$ltb2/liba/Makefile.am"]],
+[[
+lib_LTLIBRARIES = libltb2a.la
+libltb2a_la_SOURCES = libltb2a.c
+libltb2a_la_LIBADD = -L$(libdir) -lltb2dep
+]])
+
+# Print out the flag LTBUG_ID. This will show if we are using the installed 
version
+# of this library or the local version.
+AT_DATA([["$ltb2/liba/libltb2a.c"]],
+[[
+#include <stdio.h>
+void
+ltb2a_version (void)
+{
+  printf ("ltb2a: %s\n", LTBUG_ID);
+}
+]])
+
+# Create libb, which is NOT linked to the external library.
+mkdir "$ltb2/libb"
+
+AT_DATA([["$ltb2/libb/Makefile.am"]],
+[[
+lib_LTLIBRARIES = libltb2b.la
+libltb2b_la_SOURCES = libltb2b.c
+]])
+
+# The same as for libltb2a.c. Print out the LTBUG_ID flag and see if the local 
or
+# installed version is used.
+AT_DATA([["$ltb2/libb/libltb2b.c"]],
+[[
+#include <stdio.h>
+void
+ltb2b_version (void)
+{
+  printf ("ltb2b: %s\n", LTBUG_ID);
+}
+]])
+
+mkdir $ltb2/src
+
+AT_DATA([["$ltb2/src/Makefile.am"]],
+[[
+bin_PROGRAMS = ltb2
+ltb2_SOURCES = main.c
+ltb2_LDADD = ../liba/libltb2a.la ../libb/libltb2b.la
+AM_CPPFLAGS = -I$(top_srcdir)
+]])
+
+# Create a program which outputs the version, local or installed, for both
+# liba and libb.
+AT_DATA([["$ltb2/src/main.c"]],
+[[
+#include <ltb2.h>
+int
+main (int argc, char **argv)
+{
+  ltb2a_version ();
+  ltb2b_version ();
+  return 0;
+}
+]])
+
+AT_DATA([["$ltb2/Makefile.am"]],
+[[
+ACLOCAL_AMFLAGS = -I m4
+SUBDIRS = liba libb src
+noinst_HEADERS = ltb2.h
+]])
+
+AT_DATA([["$ltb2/configure.ac"]],
+[[
+#                                               -*- Autoconf -*-
+# Process this file with autoconf to produce a configure script.
+
+AC_PREREQ([2.69])
+AC_INIT([ltb2], ]AT_PACKAGE_VERSION[, ]AT_PACKAGE_BUGREPORT[)
+
+AC_CONFIG_SRCDIR([src/main.c])
+AC_CONFIG_AUX_DIR([build-aux])
+AC_CONFIG_MACRO_DIR([m4])
+
+AM_INIT_AUTOMAKE([foreign])
+
+AC_PROG_CC
+LT_PREREQ([2.4.6])
+LT_INIT
+
+AC_ARG_VAR([LTBUG_ID],[Identifier of the bug case])
+if test -z "$LTBUG_ID"; then
+  LTBUG_ID=local
+fi
+AC_DEFINE_UNQUOTED([LTBUG_ID],["$LTBUG_ID"],
+ [Text string identifying the library])
+
+AC_CONFIG_FILES([Makefile liba/Makefile libb/Makefile src/Makefile])
+
+AC_OUTPUT
+]])
+
+AT_DATA([["$ltb2/ltb2.h"]],
+[[
+extern void ltb2a_version (void);
+extern void ltb2b_version (void);
+]])
+
+echo "Running autoreconf on dependency library and project directory"
+(
+    cd $ext_lib_dir
+    LT_AT_LIBTOOLIZE([--install])
+    LT_AT_AUTORECONF([-i])
+    cd -
+    cd $ltb2
+    LT_AT_LIBTOOLIZE([--install])
+    LT_AT_AUTORECONF([-i])
+)
+
+mkdir build_dep build_inst build_local prefix_dir
+
+prefix=$(cd prefix_dir; pwd)
+
+echo "Building dependency library"
+(
+    cd build_dep
+    LT_AT_CONFIGURE([--prefix=$prefix], [$ext_lib_dir/configure])
+    LT_AT_MAKE([])
+    LT_AT_MAKE([install])
+)
+
+echo "Building and installing project"
+(
+    cd build_inst
+    LT_AT_CONFIGURE([--prefix=$prefix LTBUG_ID='installed'], [$ltb2/configure])
+    LT_AT_MAKE([])
+    LT_AT_MAKE([install])
+)
+
+echo "Building local copy of the project"
+(
+    cd build_local
+    LT_AT_CONFIGURE([--prefix=$prefix], [$ltb2/configure])
+    LT_AT_MAKE([])
+)
+
+# Although we have installed ltb2, we still expect that we are using the local
+# version of ltb2a and ltb2b.
+cat > expout <<EOF
+ltb2a: local
+ltb2b: local
+EOF
+
+case $host_os in
+mingw* | windows*)
+  awk '{printf ("%s\r\n", [$]0);}' < expout > expout.t && mv -f expout.t expout
+  ;;
+cygwin*)
+  awk '{printf ("%s\n", [$]0);}' < expout > expout.t && mv -f expout.t expout
+  ;;
+esac
+
+build_local/src/ltb2 > stdout
+
+echo "Comparing expout to the build binary"
+AT_CHECK([cmp -s stdout expout], [0])
+
+AT_CLEANUP



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