Remove code that checks for GNU/non-GNU make

Since GNU make is now required to build GDB, we can remove everything
that checks whether the current make implemention is the GNU one or
not.  I simply removed the @GMAKE_TRUE@ prefixes and removed the whole
lines that were prefixed with @GMAKE_FALSE@.

I removed the code in the configure scripts that set those variables.

I also removed the following bits from the configure scripts:

  AC_CHECK_PROGS(MAKE, make): GNU make already defines a MAKE variable
    internally to be used when invoking Makefiles recursively.  I don't see
    this variable being used anywhere else (in scripts for example), so I
    think it's safe for removal.

  AC_PROG_MAKE_SET: This macro defines a SET_MAKE output variable, which
    is meant to be used in Makefiles to define the MAKE variable when
    using an implementation of make that doesn't already define it.
    Since we are now requiring GNU make, we don't need it anymore.
    Plus, I don't see SET_MAKE being used anywhere, so I don't think it
    was actually doing anything...

gdb/ChangeLog:

	* Makefile.in: Remove @GMAKE_TRUE@ prefixes and removes lines
	prefixed with @GMAKE_FALSE@.  Update comment related to non-GNU
	make.
	* configure.ac: Remove checks for the make program.
	* configure: Re-generate.

gdb/gdbserver/ChangeLog:

	* Makefile.in: Remove @GMAKE_TRUE@ prefixes and removes lines
	prefixed with @GMAKE_FALSE@.  Update comment related to non-GNU
	make.
	* configure.ac: Remove checks for the make program.
	* configure: Re-generate.

gdb/testsuite/ChangeLog:

	* Makefile.in: Remove @GMAKE_TRUE@ prefixes and removes lines
	prefixed with @GMAKE_FALSE@.  Update comment related to non-GNU
	make.
	* configure.ac: Remove checks for the make program.
	* configure: Re-generate.

1 files changed, 16 insertions, 18 deletions

diff --git a/gdb/Makefile.in b/gdb/Makefile.in
index 3876cd9..f53b121 100644
--- a/gdb/Makefile.in
+++ b/gdb/Makefile.in
@@ -2734,26 +2734,24 @@ py-varobj.o: $(srcdir)/python/py-varobj.c
 	$(POSTCOMPILE)
 
 #
-# Dependency tracking.  Most of this is conditional on GNU Make being
-# found by configure; if GNU Make is not found, we fall back to a
-# simpler scheme.
+# Dependency tracking.
 #
 
-@GMAKE_TRUE@ifeq ($(DEPMODE),depmode=gcc3)
+ifeq ($(DEPMODE),depmode=gcc3)
 # Note that we put the dependencies into a .Tpo file, then move them
 # into place if the compile succeeds.  We need this because gcc does
 # not atomically write the dependency output file.
-@GMAKE_TRUE@override COMPILE.post = -c -o $@ -MT $@ -MMD -MP \
-@GMAKE_TRUE@	-MF $(DEPDIR)/$(basename $(@F)).Tpo
-@GMAKE_TRUE@override POSTCOMPILE = @mv $(DEPDIR)/$(basename $(@F)).Tpo \
-@GMAKE_TRUE@	$(DEPDIR)/$(basename $(@F)).Po
-@GMAKE_TRUE@else
-@GMAKE_TRUE@override COMPILE.pre = source='$<' object='$@' libtool=no \
-@GMAKE_TRUE@	DEPDIR=$(DEPDIR) $(DEPMODE) $(depcomp) $(CC)
+override COMPILE.post = -c -o $@ -MT $@ -MMD -MP \
+	-MF $(DEPDIR)/$(basename $(@F)).Tpo
+override POSTCOMPILE = @mv $(DEPDIR)/$(basename $(@F)).Tpo \
+	$(DEPDIR)/$(basename $(@F)).Po
+else
+override COMPILE.pre = source='$<' object='$@' libtool=no \
+	DEPDIR=$(DEPDIR) $(DEPMODE) $(depcomp) $(CC)
 # depcomp handles atomicity for us, so we don't need a postcompile
 # step.
-@GMAKE_TRUE@override POSTCOMPILE =
-@GMAKE_TRUE@endif
+override POSTCOMPILE =
+endif
 
 # A list of all the objects we might care about in this build, for
 # dependency tracking.
@@ -2763,13 +2761,13 @@ all_object_files = gdb.o $(LIBGDB_OBS) gdbtk-main.o \
 # Ensure that generated files are created early.  Use order-only
 # dependencies if available.  They require GNU make 3.80 or newer,
 # and the .VARIABLES variable was introduced at the same time.
-@GMAKE_TRUE@ifdef .VARIABLES
-@GMAKE_TRUE@$(all_object_files): | $(generated_files)
-@GMAKE_TRUE@else
+ifdef .VARIABLES
+$(all_object_files): | $(generated_files)
+else
 $(all_object_files) : $(generated_files)
-@GMAKE_TRUE@endif
+endif
 
 # Dependencies.
-@GMAKE_TRUE@-include $(patsubst %.o, $(DEPDIR)/%.Po, $(all_object_files))
+-include $(patsubst %.o, $(DEPDIR)/%.Po, $(all_object_files))
 
 ### end of the gdb Makefile.in.