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authorRoland McGrath <roland@gnu.org>2002-03-14 23:33:10 +0000
committerRoland McGrath <roland@gnu.org>2002-03-14 23:33:10 +0000
commitf3787738d8dc97223747038fe431d3ed2713cfc9 (patch)
treec79cc716f60ab14e1e87ecd73918071b61c9babd /Makeconfig
parent951641e7a3ca2287b10da9ab8f916cc88a5c3b22 (diff)
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* Makerules ($(common-objpfx)Versions.v.i): Depend on abi-versions.h.
* Makeconfig (%.v.i, %.v): New implicit rules. (preprocess-versions): Variable removed. ($(common-objpfx)shlib-versions.v.i): New target giving just the shlib-versions input files as dependencies. ($(common-objpfx)soversions.i): Depend on that instead of the input files. Use it as input instead of using a pipeline. (postclean-generated): Append soversions.i, shlib-versions.v, and shlib-versions.v.i here. * Makerules ($(common-objpfx)Versions.def.v.i): New target giving just the Versions.def input files as dependencies. ($(common-objpfx)Versions.v.i): Likewise for Versions files. ($(common-objpfx)Versions.all): Depend on that instead of the input files. Use it as input instead of using a pipeline. ($(common-objpfx)sysd-versions): Likewise with Versions.v.i. (postclean-generated): Append those .v and .v.i files here.
Diffstat (limited to 'Makeconfig')
-rw-r--r--Makeconfig72
1 files changed, 40 insertions, 32 deletions
diff --git a/Makeconfig b/Makeconfig
index ee3a880b6c..d7c7172db6 100644
--- a/Makeconfig
+++ b/Makeconfig
@@ -1,4 +1,4 @@
-# Copyright (C) 1991-2000, 2001 Free Software Foundation, Inc.
+# Copyright (C) 1991-2000,01,02 Free Software Foundation, Inc.
# This file is part of the GNU C Library.
# The GNU C Library is free software; you can redistribute it and/or
@@ -731,15 +731,24 @@ endif
ifeq (yes, $(build-shared))
-# Commands to put in a pipeline to preprocess a file with # comments
-# %ifdef et al based on config.h settings or other %include'd files.
-define preprocess-versions
-sed '/^[ ]*#/d;s/^[ ]*%/#/' \
-| $(CC) -E -undef -I$(common-objdir) -I$(..)include \
- -include $(common-objpfx)config.h \
- -DASSEMBLER -x assembler-with-cpp - \
-| sed '/^[ ]*#/d;/^[ ]*$$/d'
-endef
+# This is a pair of implicit rules to preprocess a file with # comments,
+# %ifdef et al, based on config.h settings or other %include'd files.
+# We use chained rules instead of a pipeline here so that we can properly
+# check the exit status of cpp rather than using its bad output when there
+# is a preprocessing error. Another rule should depend on the output file
+# `FOO.v', and along with that `FOO.v.i' should be given dependencies
+# listing both its input files, and any header files that it may reference
+# (but no commands).
+%.v.i: $(common-objpfx)config.h
+ sed '/^[ ]*#/d;s/^[ ]*%/#/' $(filter-out FORCE %.h,$^) \
+ | $(CC) -E -undef -I$(common-objdir) -I$(..)include \
+ -include $(common-objpfx)config.h \
+ -DASSEMBLER -x assembler-with-cpp - \
+ > $@T
+ mv -f $@T $@
+%.v: %.v.i
+ sed '/^[ ]*#/d;/^[ ]*$$/d' $< > $@T
+ mv -f $@T $@
# Process the shlib-versions file, which tells us what shared library
# version numbers to use when we install shared objects on this system.
@@ -747,28 +756,26 @@ endef
ifeq ($(sysd-sorted-done),t)
-include $(common-objpfx)soversions.mk
ifndef avoid-generated
-$(common-objpfx)soversions.i: $(..)shlib-versions $(..)Makeconfig \
- $(wildcard $(patsubst %, $(..)%/shlib-versions,\
- $(add-ons) \
- $(subdirs))) \
- $(common-objpfx)config.make
- cat $(filter-out $(..)Makeconfig $(common-objpfx)config.make,$^) \
- | $(preprocess-versions) \
- | while read conf version setname; do \
- test -n "$$version" && \
- test `expr '$(config-machine)-$(config-vendor)-$(config-os)' \
- : "$$conf"` != 0 || continue; \
- if test "x$$version" = xDEFAULT; then \
- default_setname="$$setname"; \
- else \
- lib=`echo $$version | sed 's/=.*$$//'`; \
- if eval test -z "\$${versioned_$${lib}}"; then \
- eval versioned_$${lib}=yes; \
- number=`echo $$version | sed "s/^.*=//"`; \
- echo $$lib $$number $${setname:-$${default_setname}}; \
- fi; \
+$(common-objpfx)shlib-versions.v.i: \
+ $(..)shlib-versions $(wildcard $(patsubst %, $(..)%/shlib-versions,\
+ $(add-ons) \
+ $(subdirs)))
+$(common-objpfx)soversions.i: $(common-objpfx)shlib-versions.v
+ while read conf version setname; do \
+ test -n "$$version" && \
+ test `expr '$(config-machine)-$(config-vendor)-$(config-os)' \
+ : "$$conf"` != 0 || continue; \
+ if test "x$$version" = xDEFAULT; then \
+ default_setname="$$setname"; \
+ else \
+ lib=`echo $$version | sed 's/=.*$$//'`; \
+ if eval test -z "\$${versioned_$${lib}}"; then \
+ eval versioned_$${lib}=yes; \
+ number=`echo $$version | sed "s/^.*=//"`; \
+ echo $$lib $$number $${setname:-$${default_setname}}; \
fi; \
- done > $@T; exit 0
+ fi; \
+ done < $< > $@T; exit 0
mv -f $@T $@
$(common-objpfx)soversions.mk: $(common-objpfx)soversions.i
(while read lib number setname; do \
@@ -784,7 +791,8 @@ $(common-objpfx)soversions.mk: $(common-objpfx)soversions.i
endif
endif
-postclean-generated += soversions.mk
+postclean-generated += soversions.mk soversions.i \
+ shlib-versions.v shlib-versions.v.i
# Generate the header containing the names of all shared libraries.
# We use a stamp file to avoid uncessary recompilations.