diff options
Diffstat (limited to 'm4')
| -rw-r--r-- | m4/depout.m4 | 78 | ||||
| -rw-r--r-- | m4/make.m4 | 59 |
2 files changed, 60 insertions, 77 deletions
diff --git a/m4/depout.m4 b/m4/depout.m4 index 0032e8ed4..c3936a71d 100644 --- a/m4/depout.m4 +++ b/m4/depout.m4 @@ -6,7 +6,6 @@ # gives unlimited permission to copy and/or distribute it, # with or without modifications, as long as this notice is preserved. - # _AM_OUTPUT_DEPENDENCY_COMMANDS # ------------------------------ AC_DEFUN([_AM_OUTPUT_DEPENDENCY_COMMANDS], @@ -14,49 +13,41 @@ AC_DEFUN([_AM_OUTPUT_DEPENDENCY_COMMANDS], # Older Autoconf quotes --file arguments for eval, but not when files # are listed without --file. Let's play safe and only enable the eval # if we detect the quoting. - case $CONFIG_FILES in - *\'*) eval set x "$CONFIG_FILES" ;; - *) set x $CONFIG_FILES ;; - esac + # TODO: see whether this extra hack can be removed once we start + # requiring Autoconf 2.70 or later. + AS_CASE([$CONFIG_FILES], + [*\'*], [eval set x "$CONFIG_FILES"], + [*], [set x $CONFIG_FILES]) shift - for mf + # Used to flag and report bootstrapping failures. + am_rc=0 + for am_mf do # Strip MF so we end up with the name of the file. - mf=`echo "$mf" | sed -e 's/:.*$//'` - # Check whether this is an Automake generated Makefile or not. - # We used to match only the files named 'Makefile.in', but - # some people rename them; so instead we look at the file content. - # Grep'ing the first line is not enough: some people post-process - # each Makefile.in and add a new line on top of each file to say so. - # Grep'ing the whole file is not good either: AIX grep has a line + am_mf=`AS_ECHO(["$am_mf"]) | sed -e 's/:.*$//'` + # Check whether this is an Automake generated Makefile which includes + # dependency-tracking related rules and includes. + # Grep'ing the whole file directly is not great: AIX grep has a line # limit of 2048, but all sed's we know have understand at least 4000. - if sed -n 's,^#.*generated by automake.*,X,p' "$mf" | grep X >/dev/null 2>&1; then - dirpart=`AS_DIRNAME("$mf")` - else - continue - fi - # Extract the definition of DEPDIR, am__include, and am__quote - # from the Makefile without running 'make'. - DEPDIR=`sed -n 's/^DEPDIR = //p' < "$mf"` - test -z "$DEPDIR" && continue - am__include=`sed -n 's/^am__include = //p' < "$mf"` - test -z "$am__include" && continue - am__quote=`sed -n 's/^am__quote = //p' < "$mf"` - # Find all dependency output files, they are included files with - # $(DEPDIR) in their names. We invoke sed twice because it is the - # simplest approach to changing $(DEPDIR) to its actual value in the - # expansion. - for file in `sed -n " - s/^$am__include $am__quote\(.*(DEPDIR).*\)$am__quote"'$/\1/p' <"$mf" | \ - sed -e 's/\$(DEPDIR)/'"$DEPDIR"'/g'`; do - # Make sure the directory exists. - test -f "$dirpart/$file" && continue - fdir=`AS_DIRNAME(["$file"])` - AS_MKDIR_P([$dirpart/$fdir]) - # echo "creating $dirpart/$file" - echo '# dummy' > "$dirpart/$file" - done + sed -n 's,^am--depfiles:.*,X,p' "$am_mf" | grep X >/dev/null 2>&1 \ + || continue + am_dirpart=`AS_DIRNAME(["$am_mf"])` + am_filepart=`AS_BASENAME(["$am_mf"])` + AM_RUN_LOG([cd "$am_dirpart" \ + && sed -e '/# am--include-marker/d' "$am_filepart" \ + | $MAKE -f - am--depfiles]) || am_rc=$? done + if test $am_rc -ne 0; then + AC_MSG_FAILURE([Something went wrong bootstrapping makefile fragments + for automatic dependency tracking. Try re-running configure with the + '--disable-dependency-tracking' option to at least be able to build + the package (albeit without support for automatic dependency tracking).]) + fi + AS_UNSET([am_dirpart]) + AS_UNSET([am_filepart]) + AS_UNSET([am_mf]) + AS_UNSET([am_rc]) + rm -f conftest-deps.mk } ])# _AM_OUTPUT_DEPENDENCY_COMMANDS @@ -65,11 +56,10 @@ AC_DEFUN([_AM_OUTPUT_DEPENDENCY_COMMANDS], # ----------------------------- # This macro should only be invoked once -- use via AC_REQUIRE. # -# This code is only required when automatic dependency tracking -# is enabled. FIXME. This creates each '.P' file that we will -# need in order to bootstrap the dependency handling code. +# This code is only required when automatic dependency tracking is enabled. +# This creates each '.Po' and '.Plo' makefile fragment that we'll need in +# order to bootstrap the dependency handling code. AC_DEFUN([AM_OUTPUT_DEPENDENCY_COMMANDS], [AC_CONFIG_COMMANDS([depfiles], [test x"$AMDEP_TRUE" != x"" || _AM_OUTPUT_DEPENDENCY_COMMANDS], - [AMDEP_TRUE="$AMDEP_TRUE" ac_aux_dir="$ac_aux_dir"]) -]) + [AMDEP_TRUE="$AMDEP_TRUE" MAKE="${MAKE-make}"])]) diff --git a/m4/make.m4 b/m4/make.m4 index 704e32fdd..fff073329 100644 --- a/m4/make.m4 +++ b/m4/make.m4 @@ -8,42 +8,35 @@ # AM_MAKE_INCLUDE() # ----------------- -# Check to see how make treats includes. +# Check whether make has an 'include' directive that can support all +# the idioms we need for our automatic dependency tracking code. AC_DEFUN([AM_MAKE_INCLUDE], -[am_make=${MAKE-make} -cat > confinc << 'END' +[AC_MSG_CHECKING([whether ${MAKE-make} supports the include directive]) +cat > confinc.mk << 'END' am__doit: - @echo this is the am__doit target + @echo this is the am__doit target >confinc.out .PHONY: am__doit END -# If we don't find an include directive, just comment out the code. -AC_MSG_CHECKING([for style of include used by $am_make]) am__include="#" am__quote= -_am_result=none -# First try GNU make style include. -echo "include confinc" > confmf -# Ignore all kinds of additional output from 'make'. -case `$am_make -s -f confmf 2> /dev/null` in #( -*the\ am__doit\ target*) - am__include=include - am__quote= - _am_result=GNU - ;; -esac -# Now try BSD make style include. -if test "$am__include" = "#"; then - echo '.include "confinc"' > confmf - case `$am_make -s -f confmf 2> /dev/null` in #( - *the\ am__doit\ target*) - am__include=.include - am__quote="\"" - _am_result=BSD - ;; - esac -fi -AC_SUBST([am__include]) -AC_SUBST([am__quote]) -AC_MSG_RESULT([$_am_result]) -rm -f confinc confmf -]) +# BSD make does it like this. +echo '.include "confinc.mk" # ignored' > confmf.BSD +# Other make implementations (GNU, Solaris 10, AIX) do it like this. +echo 'include confinc.mk # ignored' > confmf.GNU +_am_result=no +for s in GNU BSD; do + AM_RUN_LOG([${MAKE-make} -f confmf.$s && cat confinc.out]) + AS_CASE([$?:`cat confinc.out 2>/dev/null`], + ['0:this is the am__doit target'], + [AS_CASE([$s], + [BSD], [am__include='.include' am__quote='"'], + [am__include='include' am__quote=''])]) + if test "$am__include" != "#"; then + _am_result="yes ($s style)" + break + fi +done +rm -f confinc.* confmf.* +AC_MSG_RESULT([${_am_result}]) +AC_SUBST([am__include])]) +AC_SUBST([am__quote])]) |