Allow overriding EXPECT

While investigating possible race conditions in the GCC testsuites
caused by bufferization issues, I wanted to investigate workarounds
similar to GDB's READ1 [1], and I noticed it was not always possible
to override EXPECT when running 'make check'.

This patch adds the missing support in various Makefiles.

I was not able to test the patch for all the libraries updated here,
but I confirmed it works as intended/needed for libstdc++.

libatomic, libitm, libgomp already work as intended because their
Makefiles do not have:
MAKEOVERRIDES=

Tested on (native) aarch64-linux-gnu, confirmed the patch introduces
the behaviour I want in gcc, g++, gfortran and libstdc++.

I updated (but could not test) libgm2, libphobos, libquadmath and
libssp for consistency since their Makefiles have MAKEOVERRIDES=

libffi, libgo, libsanitizer seem to need a similar update, but they
are imported from their respective upstream repo, so should not be
patched here.

[1] https://github.com/bminor/binutils-gdb/blob/master/gdb/testsuite/README#L269

2023-12-21  Christophe Lyon  <[email protected]>

	gcc/
	* Makefile.in: Allow overriding EXEPCT.

	libgm2/
	* Makefile.am: Allow overriding EXEPCT.
	* Makefile.in: Regenerate.

	libphobos/
	* Makefile.am: Allow overriding EXEPCT.
	* Makefile.in: Regenerate.

	libquadmath/
	* Makefile.am: Allow overriding EXEPCT.
	* Makefile.in: Regenerate.

	libssp/
	* Makefile.am: Allow overriding EXEPCT.
	* Makefile.in: Regenerate.

	libstdc++-v3/
	* Makefile.am: Allow overriding EXEPCT.
	* Makefile.in: Regenerate.

gcc/Makefile.in

@@ -4304,6 +4304,7 @@ $(lang_checks_parallel): site.exp
 	vardots=`echo "$$variant" | sed 's,/,.,g'`; \
 	$(MAKE) TESTSUITEDIR="testsuite.$$vardots" \
 	  RUNTESTFLAGS="--target_board=$$variant $(RUNTESTFLAGS)" \
+	  EXPECT=$(EXPECT) \
 	  "$$target"
 
 TESTSUITEDIR = testsuite
@@ -4369,6 +4370,7 @@ $(lang_checks_parallelized): check-% : site.exp
 	  GCC_RUNTEST_PARALLELIZE_DIR=`${PWD_COMMAND}`/$(TESTSUITEDIR)/$(check_p_tool)-parallel ; \
 	  export GCC_RUNTEST_PARALLELIZE_DIR ; \
 	  $(MAKE) TESTSUITEDIR="$(TESTSUITEDIR)" RUNTESTFLAGS="$(RUNTESTFLAGS)" \
+	    EXPECT=$(EXPECT) \
 	    check-parallel-$* \
 	    $(patsubst %,check-parallel-$*_%, $(check_p_subdirs)); \
 	  sums= ; logs= ; \
@@ -4387,6 +4389,7 @@ $(lang_checks_parallelized): check-% : site.exp
 	  rm -rf $(TESTSUITEDIR)/$*-parallel || true; \
 	else \
 	  $(MAKE) TESTSUITEDIR="$(TESTSUITEDIR)" RUNTESTFLAGS="$(RUNTESTFLAGS)" \
+	    EXPECT=$(EXPECT) \
 	    check_$*_parallelize= check-parallel-$*; \
 	fi
 

libgm2/Makefile.am

@@ -69,6 +69,7 @@ AM_MAKEFLAGS = \
 	"CFLAGS_FOR_BUILD=$(CFLAGS_FOR_BUILD)" \
 	"CFLAGS_FOR_TARGET=$(CFLAGS_FOR_TARGET)" \
         "CFLAGS_LONGDOUBLE=$(CFLAGS_LONGDOUBLE)" \
+	"EXPECT=$(EXPECT)" \
 	"INSTALL=$(INSTALL)" \
 	"INSTALL_DATA=$(INSTALL_DATA)" \
 	"INSTALL_PROGRAM=$(INSTALL_PROGRAM)" \

libgm2/Makefile.in

@@ -371,6 +371,7 @@ AM_MAKEFLAGS = \
 	"CFLAGS_FOR_BUILD=$(CFLAGS_FOR_BUILD)" \
 	"CFLAGS_FOR_TARGET=$(CFLAGS_FOR_TARGET)" \
         "CFLAGS_LONGDOUBLE=$(CFLAGS_LONGDOUBLE)" \
+	"EXPECT=$(EXPECT)" \
 	"INSTALL=$(INSTALL)" \
 	"INSTALL_DATA=$(INSTALL_DATA)" \
 	"INSTALL_PROGRAM=$(INSTALL_PROGRAM)" \

libphobos/Makefile.am

@@ -38,6 +38,7 @@ AM_MAKEFLAGS = \
 	"CXXFLAGS=$(CXXFLAGS)" \
 	"CFLAGS_FOR_BUILD=$(CFLAGS_FOR_BUILD)" \
 	"CFLAGS_FOR_TARGET=$(CFLAGS_FOR_TARGET)" \
+	"EXPECT=$(EXPECT)" \
 	"GDC_FOR_TARGET=$(GDC_FOR_TARGET)" \
 	"GDC=$(GDC)" \
 	"GDCFLAGS=$(GDCFLAGS)" \

libphobos/Makefile.in

@@ -365,6 +365,7 @@ AM_MAKEFLAGS = \
 	"CXXFLAGS=$(CXXFLAGS)" \
 	"CFLAGS_FOR_BUILD=$(CFLAGS_FOR_BUILD)" \
 	"CFLAGS_FOR_TARGET=$(CFLAGS_FOR_TARGET)" \
+	"EXPECT=$(EXPECT)" \
 	"GDC_FOR_TARGET=$(GDC_FOR_TARGET)" \
 	"GDC=$(GDC)" \
 	"GDCFLAGS=$(GDCFLAGS)" \

libquadmath/Makefile.am

@@ -88,6 +88,7 @@ AM_MAKEFLAGS = \
 	"CXXFLAGS=$(CXXFLAGS)" \
 	"CFLAGS_FOR_BUILD=$(CFLAGS_FOR_BUILD)" \
 	"CFLAGS_FOR_TARGET=$(CFLAGS_FOR_TARGET)" \
+	"EXPECT=$(EXPECT)" \
 	"INSTALL=$(INSTALL)" \
 	"INSTALL_DATA=$(INSTALL_DATA)" \
 	"INSTALL_PROGRAM=$(INSTALL_PROGRAM)" \

libquadmath/Makefile.in

@@ -512,6 +512,7 @@ AUTOMAKE_OPTIONS = foreign info-in-builddir
 @BUILD_LIBQUADMATH_TRUE@	"CXXFLAGS=$(CXXFLAGS)" \
 @BUILD_LIBQUADMATH_TRUE@	"CFLAGS_FOR_BUILD=$(CFLAGS_FOR_BUILD)" \
 @BUILD_LIBQUADMATH_TRUE@	"CFLAGS_FOR_TARGET=$(CFLAGS_FOR_TARGET)" \
+@BUILD_LIBQUADMATH_TRUE@	"EXPECT=$(EXPECT)" \
 @BUILD_LIBQUADMATH_TRUE@	"INSTALL=$(INSTALL)" \
 @BUILD_LIBQUADMATH_TRUE@	"INSTALL_DATA=$(INSTALL_DATA)" \
 @BUILD_LIBQUADMATH_TRUE@	"INSTALL_PROGRAM=$(INSTALL_PROGRAM)" \

libssp/Makefile.am

@@ -77,6 +77,7 @@ AM_MAKEFLAGS = \
 	"CXXFLAGS=$(CXXFLAGS)" \
 	"CFLAGS_FOR_BUILD=$(CFLAGS_FOR_BUILD)" \
 	"CFLAGS_FOR_TARGET=$(CFLAGS_FOR_TARGET)" \
+	"EXPECT=$(EXPECT)" \
 	"INSTALL=$(INSTALL)" \
 	"INSTALL_DATA=$(INSTALL_DATA)" \
 	"INSTALL_PROGRAM=$(INSTALL_PROGRAM)" \

libssp/Makefile.in

@@ -403,6 +403,7 @@ AM_MAKEFLAGS = \
 	"CXXFLAGS=$(CXXFLAGS)" \
 	"CFLAGS_FOR_BUILD=$(CFLAGS_FOR_BUILD)" \
 	"CFLAGS_FOR_TARGET=$(CFLAGS_FOR_TARGET)" \
+	"EXPECT=$(EXPECT)" \
 	"INSTALL=$(INSTALL)" \
 	"INSTALL_DATA=$(INSTALL_DATA)" \
 	"INSTALL_PROGRAM=$(INSTALL_PROGRAM)" \

libstdc++-v3/Makefile.am

@@ -142,6 +142,7 @@ AM_MAKEFLAGS = \
 	"CXXFLAGS=$(CXXFLAGS)" \
 	"CFLAGS_FOR_BUILD=$(CFLAGS_FOR_BUILD)" \
 	"CFLAGS_FOR_TARGET=$(CFLAGS_FOR_TARGET)" \
+	"EXPECT=$(EXPECT)" \
 	"INSTALL=$(INSTALL)" \
 	"INSTALL_DATA=$(INSTALL_DATA)" \
 	"INSTALL_PROGRAM=$(INSTALL_PROGRAM)" \

libstdc++-v3/Makefile.in

@@ -460,6 +460,7 @@ AM_MAKEFLAGS = \
 	"CXXFLAGS=$(CXXFLAGS)" \
 	"CFLAGS_FOR_BUILD=$(CFLAGS_FOR_BUILD)" \
 	"CFLAGS_FOR_TARGET=$(CFLAGS_FOR_TARGET)" \
+	"EXPECT=$(EXPECT)" \
 	"INSTALL=$(INSTALL)" \
 	"INSTALL_DATA=$(INSTALL_DATA)" \
 	"INSTALL_PROGRAM=$(INSTALL_PROGRAM)" \