diff options
Diffstat (limited to 'libstdc++-v3')
| -rw-r--r-- | libstdc++-v3/ChangeLog | 21 | ||||
| -rw-r--r-- | libstdc++-v3/Makefile.am | 15 | ||||
| -rw-r--r-- | libstdc++-v3/Makefile.in | 24 | ||||
| -rwxr-xr-x | libstdc++-v3/configure | 8 | ||||
| -rw-r--r-- | libstdc++-v3/configure.in | 12 | ||||
| -rwxr-xr-x | libstdc++-v3/scripts/check_survey.in (renamed from libstdc++-v3/mkcheck.in) | 35 | ||||
| -rwxr-xr-x | libstdc++-v3/scripts/extract_symvers (renamed from libstdc++-v3/config/abi/extract_symvers) | 0 | ||||
| -rwxr-xr-x | libstdc++-v3/scripts/testsuite_flags.in (renamed from libstdc++-v3/testsuite_flags.in) | 0 | ||||
| -rw-r--r-- | libstdc++-v3/testsuite/Makefile.am | 40 | ||||
| -rw-r--r-- | libstdc++-v3/testsuite/Makefile.in | 42 | ||||
| -rw-r--r-- | libstdc++-v3/testsuite/lib/libstdc++-v3-dg.exp | 2 |
11 files changed, 118 insertions, 81 deletions
diff --git a/libstdc++-v3/ChangeLog b/libstdc++-v3/ChangeLog index 4973da0cb39..0fbe71a711c 100644 --- a/libstdc++-v3/ChangeLog +++ b/libstdc++-v3/ChangeLog @@ -1,5 +1,26 @@ 2003-06-17 Benjamin Kosnik <bkoz@redhat.com> + * scripts: New. + * config/abi/extract_symvers: Move to... + * scripts/extract_symvers: ...here. + * mkcheck.in: Move to.. + * scripts/check_survey.in: ...here. + * testsuite_flags.in: Move to.. + * scripts/testsuite_flags.in: ...here. + * configure.in: Change check and testsuite_flags locations. + * configure: Regenerate. + * testsuite/Makefile.am (current_symbols.txt): Change location. + * testsuite/Makefile.in: Regenerate. + * testsuite/lib/libstdc++-v3-dg.exp (libstdc++-v3-init): Modify + location of testsuite_flags. + * Makefile.am (check-script): Move.. + (check-script-install): Move... + * testsuite/Makefile.am: ... here. + * testsuite/Makefile.in: Regenerate. + * Makefile.in: Regenerate. + +2003-06-17 Benjamin Kosnik <bkoz@redhat.com> + * config/abi/i486-linux-gnu/baseline_symbols.txt: Update to 3.3.0. 2003-06-16 Benjamin Kosnik <bkoz@redhat.com> diff --git a/libstdc++-v3/Makefile.am b/libstdc++-v3/Makefile.am index 58edd36937a..2467ce3d7b8 100644 --- a/libstdc++-v3/Makefile.am +++ b/libstdc++-v3/Makefile.am @@ -31,21 +31,6 @@ mkinstalldirs = $(SHELL) $(toplevel_srcdir)/mkinstalldirs PWD = $${PWDCMD-pwd} -# These two special 'check-script' rules use the bash script 'mkcheck' -# to do testing. This script is not as portable as the dejagnu test -# harness, and is thus off by default. It does produce interesting -# output however, including various performance analysis items like -# compile time, execution time, and binary size. -check-script: $(top_builddir)/mkcheck - -(chmod + $(top_builddir)/mkcheck; \ - cd testsuite; \ - @glibcpp_builddir@/mkcheck 0) - -check-script-install: $(top_builddir)/mkcheck - -(chmod + $(top_builddir)/mkcheck; \ - cd testsuite; \ - @glibcpp_builddir@/mkcheck 1) - # These rules are messy, but are hella worth it. doxygen: -(srcdir=`cd ${top_srcdir}; ${PWD}`; \ diff --git a/libstdc++-v3/Makefile.in b/libstdc++-v3/Makefile.in index cdd497cac6d..956585bc26f 100644 --- a/libstdc++-v3/Makefile.in +++ b/libstdc++-v3/Makefile.in @@ -210,10 +210,9 @@ AM_MAKEFLAGS = \ FLAGS_TO_PASS = $(AM_MAKEFLAGS) ACLOCAL_M4 = $(top_srcdir)/aclocal.m4 CONFIG_HEADER = config.h -CONFIG_CLEAN_FILES = mkcheck testsuite_flags +CONFIG_CLEAN_FILES = DIST_COMMON = README ./stamp-h.in ChangeLog Makefile.am Makefile.in \ -acconfig.h acinclude.m4 aclocal.m4 config.h.in configure configure.in \ -mkcheck.in testsuite_flags.in +acconfig.h acinclude.m4 aclocal.m4 config.h.in configure configure.in DISTFILES = $(DIST_COMMON) $(SOURCES) $(HEADERS) $(TEXINFOS) $(EXTRA_DIST) @@ -264,10 +263,6 @@ distclean-hdr: -rm -f config.h maintainer-clean-hdr: -mkcheck: $(top_builddir)/config.status mkcheck.in - cd $(top_builddir) && CONFIG_FILES=$@ CONFIG_HEADERS= $(SHELL) ./config.status -testsuite_flags: $(top_builddir)/config.status testsuite_flags.in - cd $(top_builddir) && CONFIG_FILES=$@ CONFIG_HEADERS= $(SHELL) ./config.status # This directory's subdirectories are mostly independent; you can cd # into them and run `make' without going through this Makefile. @@ -479,21 +474,6 @@ distclean-generic clean-generic maintainer-clean-generic clean \ mostlyclean distclean maintainer-clean -# These two special 'check-script' rules use the bash script 'mkcheck' -# to do testing. This script is not as portable as the dejagnu test -# harness, and is thus off by default. It does produce interesting -# output however, including various performance analysis items like -# compile time, execution time, and binary size. -check-script: $(top_builddir)/mkcheck - -(chmod + $(top_builddir)/mkcheck; \ - cd testsuite; \ - @glibcpp_builddir@/mkcheck 0) - -check-script-install: $(top_builddir)/mkcheck - -(chmod + $(top_builddir)/mkcheck; \ - cd testsuite; \ - @glibcpp_builddir@/mkcheck 1) - # These rules are messy, but are hella worth it. doxygen: -(srcdir=`cd ${top_srcdir}; ${PWD}`; \ diff --git a/libstdc++-v3/configure b/libstdc++-v3/configure index a6b7b910264..2323757ce13 100755 --- a/libstdc++-v3/configure +++ b/libstdc++-v3/configure @@ -23968,7 +23968,7 @@ ac_given_INSTALL="$INSTALL" trap 'rm -fr `echo "Makefile \ include/Makefile src/Makefile \ libmath/Makefile libsupc++/Makefile \ -po/Makefile testsuite/Makefile mkcheck testsuite_flags config.h" | sed "s/:[^ ]*//g"` conftest*; exit 1' 1 2 15 +po/Makefile testsuite/Makefile scripts/check scripts/testsuite_flags config.h" | sed "s/:[^ ]*//g"` conftest*; exit 1' 1 2 15 EOF cat >> $CONFIG_STATUS <<EOF @@ -24162,7 +24162,7 @@ cat >> $CONFIG_STATUS <<EOF CONFIG_FILES=\${CONFIG_FILES-"Makefile \ include/Makefile src/Makefile \ libmath/Makefile libsupc++/Makefile \ -po/Makefile testsuite/Makefile mkcheck testsuite_flags"} +po/Makefile testsuite/Makefile scripts/check scripts/testsuite_flags"} EOF cat >> $CONFIG_STATUS <<\EOF for ac_file in .. $CONFIG_FILES; do if test "x$ac_file" != x..; then @@ -24369,8 +24369,8 @@ test -z "$CONFIG_HEADERS" || echo timestamp > stamp-h esac fi fi - chmod +x mkcheck - chmod +x testsuite_flags + chmod +x scripts/check + chmod +x scripts/testsuite_flags exit 0 EOF chmod +x $CONFIG_STATUS diff --git a/libstdc++-v3/configure.in b/libstdc++-v3/configure.in index f7ff247602b..62a972f999d 100644 --- a/libstdc++-v3/configure.in +++ b/libstdc++-v3/configure.in @@ -485,7 +485,7 @@ AC_SUBST(LIBSUPCXX_PICFLAGS) AC_OUTPUT(Makefile \ include/Makefile src/Makefile \ libmath/Makefile libsupc++/Makefile \ -po/Makefile testsuite/Makefile mkcheck testsuite_flags, +po/Makefile testsuite/Makefile scripts/check scripts/testsuite_flags, [test -z "$CONFIG_HEADERS" || echo timestamp > stamp-h if test -n "$CONFIG_FILES"; then if test -n "${with_build_subdir}" || test -n "${with_target_subdir}"; then @@ -508,8 +508,8 @@ po/Makefile testsuite/Makefile mkcheck testsuite_flags, esac fi fi - chmod +x mkcheck - chmod +x testsuite_flags], + chmod +x scripts/check + chmod +x scripts/testsuite_flags], srcdir=${srcdir} host=${host} target=${target} @@ -527,7 +527,7 @@ dnl In autoconf 2.5x, AC_OUTPUT is replaced by three AC_ macros: dnl AC_CONFIG_FILES(Makefile \ dnl include/Makefile src/Makefile \ dnl libmath/Makefile libsupc++/Makefile \ -dnl po/Makefile testsuite/Makefile mkcheck testsuite_flags) +dnl po/Makefile testsuite/Makefile scripts/mkcheck scripts/testsuite_flags) dnl AC_CONFIG_COMMANDS([default], dnl [if test -n "$CONFIG_FILES"; then dnl # Ony modify Makefiles that are just being created. @@ -547,8 +547,8 @@ dnl grep '^MULTISUBDIR =' Makefile >> libsupc++/Makefile dnl ;; dnl esac dnl fi -dnl chmod +x mkcheck -dnl chmod +x testsuite_flags +dnl chmod +x scripts/mkcheck +dnl chmod +x scripts/testsuite_flags dnl ], dnl srcdir=${srcdir} dnl host=${host} diff --git a/libstdc++-v3/mkcheck.in b/libstdc++-v3/scripts/check_survey.in index 377321cac43..3baad37229f 100755 --- a/libstdc++-v3/mkcheck.in +++ b/libstdc++-v3/scripts/check_survey.in @@ -8,7 +8,7 @@ # has been enabled. # Invocation -# mkcheck [01] +# check_survey [01] # 1: variables # @@ -17,14 +17,14 @@ # (1) testing the installed binary and headers, or WHICH=$1 if [ "$WHICH"x = 0x ]; then - echo "running mkcheck" + echo "running check_survey" echo "$0: testing the build directory" elif [ "$WHICH"x = 1x ]; then - echo "running mkcheck" + echo "running check_survey" echo "$0: testing the install directory" else - echo 'Usage: mkcheck 0 /* test the build directory */' - echo ' mkcheck 1 /* test the install directory */' + echo 'Usage: check_survey 0 /* test the build directory */' + echo ' check_survey 1 /* test the install directory */' exit 1; fi @@ -34,7 +34,7 @@ shift # This has been true all along. Found out about it the hard way... case $BASH_VERSION in - 1*) echo 'You need bash 2.x to run mkcheck. Exiting.'; exit 1 ;; + 1*) echo 'You need bash 2.x to run check_survey. Exiting.'; exit 1 ;; *) ;; # ?? esac @@ -42,16 +42,15 @@ BUILD_DIR=@glibcpp_builddir@ SRC_DIR=@glibcpp_srcdir@ PREFIX_DIR=@glibcpp_prefixdir@ if [ "$WHICH"x = 0x ]; then - CXX=`$BUILD_DIR/testsuite_flags --build-cxx` - INCLUDES=`$BUILD_DIR/testsuite_flags --build-includes` + CXX=`$BUILD_DIR/scripts/testsuite_flags --build-cxx` + INCLUDES=`$BUILD_DIR/scripts/testsuite_flags --build-includes` else - CXX=`$BUILD_DIR/testsuite_flags --install-cxx` - INCLUDES=`$BUILD_DIR/testsuite_flags --install-includes` + CXX=`$BUILD_DIR/scripts/testsuite_flags --install-cxx` + INCLUDES=`$BUILD_DIR/scripts/testsuite_flags --install-includes` fi -CXXFLAGS=`$BUILD_DIR/testsuite_flags --cxxflags` +CXXFLAGS=`$BUILD_DIR/scripts/testsuite_flags --cxxflags` LIBTOOL="$BUILD_DIR/libtool" LTEXE="$LIBTOOL --mode=execute" -#LTCXX="$LIBTOOL --tag=CXX --mode=link $CXX $CXXFLAGS $INCLUDES" LTCXX="$CXX $CXXFLAGS $INCLUDES" # specific libtool flag(s) to use shared libraries, if any @@ -59,7 +58,6 @@ SH_FLAG="-Wl,--rpath -Wl,$BUILD_DIR/../../gcc -Wl,--rpath -Wl,$BUILD_DIR/src/.li # specific libtool flag(s) to use static libraries, if any ST_FLAG="-static" -#ST_FLAG="-all-static" # Set up the testing directory, which should be in a directory called # "testsuite" in the root level of the build directory. @@ -70,14 +68,10 @@ if [ ! -d ${TEST_DIR}/.libs ]; then fi # the name of the file that will collect and hold all this useful data: -RESULTS_FILE="$TEST_DIR/$(date +%Y%m%d)-mkcheck.txt" +RESULTS_FILE="$TEST_DIR/$(date +%Y%m%d)-check_survey.txt" # the name of the log file that will append compiler diagnostics: -LOG_FILE="$TEST_DIR/$(date +%Y%m%d)-mkchecklog.txt" - -# the names of the specific test files to be run -TESTS_FILE="$TEST_DIR/$(date +%Y%m%d)-mkcheckfiles.txt" - +LOG_FILE="$TEST_DIR/$(date +%Y%m%d)-check_survey_log.txt" # # 2: clean, make files, append general test info @@ -97,6 +91,9 @@ if [ -f $LOG_FILE ]; then rm $LOG_FILE fi +# the names of the specific test files to be run +TESTS_FILE="$TEST_DIR/$(date +%Y%m%d)-check_survey_files.txt" + # Make a list of the files we're going to run, or use an old one if it exists. if [ ! -f "$TESTS_FILE" ]; then if [ -f "$TEST_DIR/testsuite_files" ]; then diff --git a/libstdc++-v3/config/abi/extract_symvers b/libstdc++-v3/scripts/extract_symvers index e7b6645900b..e7b6645900b 100755 --- a/libstdc++-v3/config/abi/extract_symvers +++ b/libstdc++-v3/scripts/extract_symvers diff --git a/libstdc++-v3/testsuite_flags.in b/libstdc++-v3/scripts/testsuite_flags.in index 4858c2e6606..4858c2e6606 100755 --- a/libstdc++-v3/testsuite_flags.in +++ b/libstdc++-v3/scripts/testsuite_flags.in diff --git a/libstdc++-v3/testsuite/Makefile.am b/libstdc++-v3/testsuite/Makefile.am index 7e5af5e37c9..fe23b81ee4d 100644 --- a/libstdc++-v3/testsuite/Makefile.am +++ b/libstdc++-v3/testsuite/Makefile.am @@ -37,14 +37,19 @@ AM_RUNTESTFLAGS = RUNTESTFLAGS = ## CXX is actually a "C" compiler. These are real C++ programs. -## Do the same thing as `testsuite_flags --build-cxx` -CXX_build = @glibcpp_CXX@ -CXX=`echo "$(CXX_build)" | sed 's,gcc/xgcc ,gcc/g++ ,'` +glibcpp_srcdir=@glibcpp_srcdir@ +glibcpp_builddir=@glibcpp_builddir@ +testsuite_flags_script=${glibcpp_builddir}/scripts/testsuite_flags +CXX=`${testsuite_flags_script} --build-cxx` + CXXLINK = \ LD_RUN_PATH=$${LD_RUN_PATH:+$$LD_RUN_PATH:}${glibcpp_builddir}/src/.libs\ $(LIBTOOL) --tag=CXX --mode=link $(CXX) \ $(AM_CXXFLAGS) $(CXXFLAGS) $(LDFLAGS) -o $@ +GLIBCPP_INCLUDES = @GLIBCPP_INCLUDES@ +LIBSUPCXX_INCLUDES = @LIBSUPCXX_INCLUDES@ +TOPLEVEL_INCLUDES = @TOPLEVEL_INCLUDES@ INCLUDES = \ -nostdinc++ \ @GLIBCPP_INCLUDES@ @LIBSUPCXX_INCLUDES@ @TOPLEVEL_INCLUDES@ @@ -79,7 +84,7 @@ check-am: check-local: check-abi baseline_file = @baseline_file@ -extract_symvers = @glibcpp_srcdir@/config/abi/extract_symvers +extract_symvers = @glibcpp_srcdir@/scripts/extract_symvers current_symbols.txt: ${extract_symvers} ../src/.libs/libstdc++.so -@(${extract_symvers} ../src/.libs/libstdc++.so current_symbols.txt) @@ -116,6 +121,31 @@ check-abi-verbose: endif +# These two special 'check-script' rules use the bash script 'check' +# to do testing. This script is not as portable as the dejagnu test +# harness, and is thus off by default. It does produce interesting +# output however, including various performance analysis items like +# compile time, execution time, and binary size. +check_survey = ${glibcpp_builddir}/scripts/check_survey +check-script: ${check_survey} + -@(chmod + ${check_survey}; \ + ${check_survey} 0) + +check-script-install: ${check_survey} + -@(chmod + ${check_survey}; \ + ${check_survey} 0) + + +# Runs the testsuite/performance tests. +# Some of these tests create large (~75MB) files, allocate huge +# ammounts of memory, or otherwise tie up machine resources. Thus, +# running this is off by default. +check_performance=${glibcpp_srcdir}/scripts/check_performance +check-performance: ${check_performance} + -@(chmod + ${check_performance}; \ + ${check_performance} ${glibcpp_srcdir} ${glibcpp_builddir}) + + # By adding these files here, automake will remove them for 'make clean' CLEANFILES = *.txt *.tst *.exe core* filebuf_* tmp* ostream_* *.log *.sum \ - testsuite_* site.exp abi_check + testsuite_* site.exp abi_check baseline_symbols diff --git a/libstdc++-v3/testsuite/Makefile.in b/libstdc++-v3/testsuite/Makefile.in index bd1e20b541c..3df92864cad 100644 --- a/libstdc++-v3/testsuite/Makefile.in +++ b/libstdc++-v3/testsuite/Makefile.in @@ -93,11 +93,9 @@ EXEEXT = @EXEEXT@ EXTRA_CXX_FLAGS = @EXTRA_CXX_FLAGS@ GCJ = @GCJ@ GCJFLAGS = @GCJFLAGS@ -GLIBCPP_INCLUDES = @GLIBCPP_INCLUDES@ GLIBCPP_IS_CROSS_COMPILING = @GLIBCPP_IS_CROSS_COMPILING@ LIBMATHOBJS = @LIBMATHOBJS@ LIBMATH_INCLUDES = @LIBMATH_INCLUDES@ -LIBSUPCXX_INCLUDES = @LIBSUPCXX_INCLUDES@ LIBSUPCXX_PICFLAGS = @LIBSUPCXX_PICFLAGS@ LIBTOOL = @LIBTOOL@ LIBUNWIND_FLAG = @LIBUNWIND_FLAG@ @@ -115,7 +113,6 @@ SECTION_FLAGS = @SECTION_FLAGS@ SECTION_LDFLAGS = @SECTION_LDFLAGS@ STRIP = @STRIP@ SYMVER_MAP = @SYMVER_MAP@ -TOPLEVEL_INCLUDES = @TOPLEVEL_INCLUDES@ USE_NLS = @USE_NLS@ VERSION = @VERSION@ WARN_FLAGS = @WARN_FLAGS@ @@ -128,10 +125,8 @@ glibcpp_MOFILES = @glibcpp_MOFILES@ glibcpp_PCHFLAGS = @glibcpp_PCHFLAGS@ glibcpp_POFILES = @glibcpp_POFILES@ glibcpp_basedir = @glibcpp_basedir@ -glibcpp_builddir = @glibcpp_builddir@ glibcpp_localedir = @glibcpp_localedir@ glibcpp_prefixdir = @glibcpp_prefixdir@ -glibcpp_srcdir = @glibcpp_srcdir@ glibcpp_thread_h = @glibcpp_thread_h@ glibcpp_toolexecdir = @glibcpp_toolexecdir@ glibcpp_toolexeclibdir = @glibcpp_toolexeclibdir@ @@ -157,14 +152,20 @@ RUNTEST = `if [ -f @glibcpp_srcdir@/../dejagnu/runtest ] ; then \ AM_RUNTESTFLAGS = RUNTESTFLAGS = -CXX_build = @glibcpp_CXX@ -CXX = `echo "$(CXX_build)" | sed 's,gcc/xgcc ,gcc/g++ ,'` +glibcpp_srcdir = @glibcpp_srcdir@ +glibcpp_builddir = @glibcpp_builddir@ +testsuite_flags_script = ${glibcpp_builddir}/scripts/testsuite_flags +CXX = `${testsuite_flags_script} --build-cxx` + CXXLINK = \ LD_RUN_PATH=$${LD_RUN_PATH:+$$LD_RUN_PATH:}${glibcpp_builddir}/src/.libs\ $(LIBTOOL) --tag=CXX --mode=link $(CXX) \ $(AM_CXXFLAGS) $(CXXFLAGS) $(LDFLAGS) -o $@ +GLIBCPP_INCLUDES = @GLIBCPP_INCLUDES@ +LIBSUPCXX_INCLUDES = @LIBSUPCXX_INCLUDES@ +TOPLEVEL_INCLUDES = @TOPLEVEL_INCLUDES@ INCLUDES = \ -nostdinc++ \ @GLIBCPP_INCLUDES@ @LIBSUPCXX_INCLUDES@ @TOPLEVEL_INCLUDES@ @@ -177,11 +178,24 @@ libv3test_a_SOURCES = testsuite_hooks.cc testsuite_allocator.cc abi_check_SOURCES = abi_check.cc baseline_file = @baseline_file@ -extract_symvers = @glibcpp_srcdir@/config/abi/extract_symvers +extract_symvers = @glibcpp_srcdir@/scripts/extract_symvers + +# These two special 'check-script' rules use the bash script 'check' +# to do testing. This script is not as portable as the dejagnu test +# harness, and is thus off by default. It does produce interesting +# output however, including various performance analysis items like +# compile time, execution time, and binary size. +check_survey = ${glibcpp_builddir}/scripts/check_survey + +# Runs the testsuite/performance tests. +# Some of these tests create large (~75MB) files, allocate huge +# ammounts of memory, or otherwise tie up machine resources. Thus, +# running this is off by default. +check_performance = ${glibcpp_srcdir}/scripts/check_performance # By adding these files here, automake will remove them for 'make clean' CLEANFILES = *.txt *.tst *.exe core* filebuf_* tmp* ostream_* *.log *.sum \ - testsuite_* site.exp abi_check + testsuite_* site.exp abi_check baseline_symbols mkinstalldirs = $(SHELL) $(top_srcdir)/../mkinstalldirs CONFIG_HEADER = ../config.h @@ -510,6 +524,16 @@ new-abi-baseline: @GLIBCPP_TEST_ABI_TRUE@ -@(./abi_check --check-verbose ./current_symbols.txt ${baseline_file}) @GLIBCPP_TEST_ABI_FALSE@check-abi: @GLIBCPP_TEST_ABI_FALSE@check-abi-verbose: +check-script: ${check_survey} + -@(chmod + ${check_survey}; \ + ${check_survey} 0) + +check-script-install: ${check_survey} + -@(chmod + ${check_survey}; \ + ${check_survey} 0) +check-performance: ${check_performance} + -@(chmod + ${check_performance}; \ + ${check_performance} ${glibcpp_srcdir} ${glibcpp_builddir}) # Tell versions [3.59,3.63) of GNU make to not export all variables. # Otherwise a system limit (for SysV at least) may be exceeded. diff --git a/libstdc++-v3/testsuite/lib/libstdc++-v3-dg.exp b/libstdc++-v3/testsuite/lib/libstdc++-v3-dg.exp index 6a4351c21e5..e9722ac660e 100644 --- a/libstdc++-v3/testsuite/lib/libstdc++-v3-dg.exp +++ b/libstdc++-v3/testsuite/lib/libstdc++-v3-dg.exp @@ -110,7 +110,7 @@ proc libstdc++-v3-init { args } { set includes "-I./" } else { # If we find a testsuite_flags file, we're testing in the build dir. - set flags_file "${blddir}/testsuite_flags" + set flags_file "${blddir}/scripts/testsuite_flags" if { [file exists $flags_file] } { set cxx [exec sh $flags_file --build-cxx] set cxxflags [exec sh $flags_file --cxxflags] |