GNU C Library master sources branch master updated. glibc-2.21-519-gb2faf4e

[jsm28 at sourceware dot org]

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http://sourceware.org/git/gitweb.cgi?p=glibc.git;a=commitdiff;h=b2faf4eadf5e9e9a71abcfe4da71fad91707ccac

commit b2faf4eadf5e9e9a71abcfe4da71fad91707ccac
Author: Joseph Myers <joseph@codesourcery.com>
Date:   Tue Jun 23 16:27:25 2015 +0000

    Fix math/Makefile dependency on libm-test.stmp for libmvec tests.
    
    Since the libmvec tests went in I've noticed build failures from
    parallel testing in math/, when those tests start building before
    libm-test.c has been fully generated.  (This only applies if libm test
    sources have been modified after the original glibc build, because
    otherwise libm-test.stmp was generated during the original build and
    doesn't get regenerated during testing.)
    
    Those tests depend on libm-test.stmp, but the dependency uses
    $(libmvec-tests), which is set in the sysdeps Makefile fragments, and
    appears before the inclusion of ../Rules, which is what includes those
    fragments; thus, the dependency does not work and parallel make can
    start building the vector tests too soon.  This patch moves the
    dependency further down so that the required variable is defined when
    the dependency is.
    
    Tested for x86_64.
    
    	* math/Makefile [$(PERL) != no]
    	($(addprefix $(objpfx), $(addsuffix .o, $(libm-vec-tests)))): Move
    	dependency on libm-test.stmp below the inclusion of Rules.

diff --git a/ChangeLog b/ChangeLog
index b76a184..d2132be 100644
--- a/ChangeLog
+++ b/ChangeLog
@@ -1,3 +1,9 @@
+2015-06-23  Joseph Myers  <joseph@codesourcery.com>
+
+	* math/Makefile [$(PERL) != no]
+	($(addprefix $(objpfx), $(addsuffix .o, $(libm-vec-tests)))): Move
+	dependency on libm-test.stmp below the inclusion of Rules.
+
 2015-06-23  Andrew Senkevich  <andrew.senkevich@intel.com>
 
 	* sysdeps/x86_64/fpu/Makefile (libmvec-support): Fixed files list.
diff --git a/math/Makefile b/math/Makefile
index 7f6b85e..2c78dd0 100644
--- a/math/Makefile
+++ b/math/Makefile
@@ -144,7 +144,6 @@ $(objpfx)test-double.o: $(objpfx)libm-test.stmp
 $(objpfx)test-idouble.o: $(objpfx)libm-test.stmp
 $(objpfx)test-ldouble.o: $(objpfx)libm-test.stmp
 $(objpfx)test-ildoubl.o: $(objpfx)libm-test.stmp
-$(addprefix $(objpfx), $(addsuffix .o, $(libm-vec-tests))): $(objpfx)libm-test.stmp
 endif
 
 libm-test-fast-math-cflags = -fno-builtin -D__FAST_MATH__ -DTEST_FAST_MATH
@@ -196,6 +195,9 @@ extra-objs += libieee.a ieee-math.o
 include ../Rules
 
 ifneq (no,$(PERL))
+# This must come after the inclusion of sysdeps Makefiles via Rules.
+$(addprefix $(objpfx), $(addsuffix .o, $(libm-vec-tests))): $(objpfx)libm-test.stmp
+
 # Run the math programs to automatically generate ULPs files.
 .PHONY: regen-ulps
 

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

Summary of changes:
 ChangeLog     |    6 ++++++
 math/Makefile |    4 +++-
 2 files changed, 9 insertions(+), 1 deletions(-)


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