mirror of
https://github.com/feather-wallet/feather.git
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100 lines
3.2 KiB
Diff
100 lines
3.2 KiB
Diff
https://sourceware.org/git/?p=glibc.git;a=commit;h=fc3e1337be1c6935ab58bd13520f97a535cf70cc
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commit dc23a45db566095e83ff0b7a57afc87fb5ca89a1
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Author: Florian Weimer <fweimer@redhat.com>
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Date: Wed Sep 21 10:45:32 2016 +0200
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Avoid running $(CXX) during build to obtain header file paths
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This reduces the build time somewhat and is particularly noticeable
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during rebuilds with few code changes.
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diff --git a/Makerules b/Makerules
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index 7e4077ee50..c338850de5 100644
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--- a/Makerules
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+++ b/Makerules
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@@ -121,14 +121,10 @@ ifneq (,$(CXX))
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# will be used instead of /usr/include/stdlib.h and /usr/include/math.h.
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before-compile := $(common-objpfx)cstdlib $(common-objpfx)cmath \
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$(before-compile)
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-cstdlib=$(shell echo "\#include <cstdlib>" | $(CXX) -M -MP -x c++ - \
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- | sed -n "/cstdlib:/{s/:$$//;p}")
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-$(common-objpfx)cstdlib: $(cstdlib)
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+$(common-objpfx)cstdlib: $(c++-cstdlib-header)
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$(INSTALL_DATA) $< $@T
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$(move-if-change) $@T $@
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-cmath=$(shell echo "\#include <cmath>" | $(CXX) -M -MP -x c++ - \
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- | sed -n "/cmath:/{s/:$$//;p}")
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-$(common-objpfx)cmath: $(cmath)
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+$(common-objpfx)cmath: $(c++-cmath-header)
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$(INSTALL_DATA) $< $@T
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$(move-if-change) $@T $@
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endif
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diff --git a/config.make.in b/config.make.in
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index 95c6f36876..04a8b3ed7f 100644
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--- a/config.make.in
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+++ b/config.make.in
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@@ -45,6 +45,8 @@ defines = @DEFINES@
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sysheaders = @sysheaders@
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sysincludes = @SYSINCLUDES@
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c++-sysincludes = @CXX_SYSINCLUDES@
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+c++-cstdlib-header = @CXX_CSTDLIB_HEADER@
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+c++-cmath-header = @CXX_CMATH_HEADER@
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all-warnings = @all_warnings@
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enable-werror = @enable_werror@
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diff --git a/configure b/configure
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index 17625e1041..6ff252744b 100755
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--- a/configure
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+++ b/configure
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@@ -635,6 +635,8 @@ BISON
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INSTALL_INFO
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PERL
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BASH_SHELL
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+CXX_CMATH_HEADER
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+CXX_CSTDLIB_HEADER
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CXX_SYSINCLUDES
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SYSINCLUDES
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AUTOCONF
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@@ -5054,6 +5056,18 @@ fi
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+# Obtain some C++ header file paths. This is used to make a local
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+# copy of those headers in Makerules.
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+if test -n "$CXX"; then
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+ find_cxx_header () {
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+ echo "#include <$1>" | $CXX -M -MP -x c++ - | sed -n "/$1:/{s/:\$//;p}"
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+ }
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+ CXX_CSTDLIB_HEADER="$(find_cxx_header cstdlib)"
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+ CXX_CMATH_HEADER="$(find_cxx_header cmath)"
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+fi
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+
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+
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+
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# Test if LD_LIBRARY_PATH contains the notation for the current directory
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# since this would lead to problems installing/building glibc.
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# LD_LIBRARY_PATH contains the current directory if one of the following
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diff --git a/configure.ac b/configure.ac
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index 33bcd62180..9938ab0dc2 100644
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--- a/configure.ac
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+++ b/configure.ac
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@@ -1039,6 +1039,18 @@ fi
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AC_SUBST(SYSINCLUDES)
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AC_SUBST(CXX_SYSINCLUDES)
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+# Obtain some C++ header file paths. This is used to make a local
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+# copy of those headers in Makerules.
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+if test -n "$CXX"; then
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+ find_cxx_header () {
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+ echo "#include <$1>" | $CXX -M -MP -x c++ - | sed -n "/$1:/{s/:\$//;p}"
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+ }
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+ CXX_CSTDLIB_HEADER="$(find_cxx_header cstdlib)"
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+ CXX_CMATH_HEADER="$(find_cxx_header cmath)"
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+fi
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+AC_SUBST(CXX_CSTDLIB_HEADER)
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+AC_SUBST(CXX_CMATH_HEADER)
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+
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# Test if LD_LIBRARY_PATH contains the notation for the current directory
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# since this would lead to problems installing/building glibc.
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# LD_LIBRARY_PATH contains the current directory if one of the following
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