-# tl_CHECK_TOOL_PREFIX will work _BEFORE_ AC_CANONICAL_HOST, etc., has been
-# called. It should be called again after these have been called.
-#
-# Basically we want to check if the host alias specified by the user is
-# different from the build alias. The rules work like this:-
-#
-# If host is not specified, it defaults to NONOPT
-# If build is not specified, it defaults to NONOPT
-# If nonopt is not specified, we guess all other values
-
-dnl Replace AC_CHECK_TOOL_PREFIX
-undefine([AC_CHECK_TOOL_PREFIX])
-define([AC_CHECK_TOOL_PREFIX], [tl_CHECK_TOOL_PREFIX])
-
-AC_DEFUN(tl_CHECK_TOOL_PREFIX,
-[AC_PROVIDE([AC_CHECK_TOOL_PREFIX])
-AC_BEFORE([AC_CANONICAL_HOST])
-AC_BEFORE([AC_CANONICAL_BUILD])
-dnl Quick check
-if test "$host_alias" = ""; then
- if test $host = NONE; then
- thost=$nonopt
- else
- thost=$host
- fi
- if test $thost != $build -a $thost != NONE; then
- ac_tool_prefix=${thost}-
- ac_tool_dir=${thost}
- else
- ac_tool_prefix=
- ac_tool_dir=
- fi
-else
- if test $host != $build; then
- ac_tool_prefix=${host_alias}-
- ac_tool_dir=${host_alias}
- else
- ac_tool_prefix=
- ac_tool_dir=
- fi
-fi
-])
-
-dnl replacement for AC_CHECK_TOOL
-undefine([AC_CHECK_TOOL])
-define([AC_CHECK_TOOL], [tl_CHECK_TOOL($1, $2, $3, $4)])
-
-dnl tl_CHECK_TOOL - AC_CHECK_TOOL, with a couple of extra checks
-dnl tl_CHECK_TOOL(VARIABLE, PROG-TO-CHECK-FOR[, VALUE-IF-NOT-FOUND [, PATH
-dnl [, REJECT]])
-AC_DEFUN(tl_CHECK_TOOL,
-[AC_REQUIRE([AC_CHECK_TOOL_PREFIX])
-AC_CHECK_PROG($1, ${ac_tool_prefix}$2, ${ac_tool_prefix}$2,
- ifelse([$3], , [$2], ), $4, $5)
-if test -z "$ac_cv_prog_$1_dir";then ac_cv_prog_$1_dir=""; fi
-if test "$ac_tool_dir" != ""; then
- if test -z "$ac_cv_prog_$1" -a "$5" != "/usr/${ac_tool_dir}/bin/$2" -a \
- "$5" != "/usr/local/${ac_tool_dir}/bin/$2"; then
- if test -f /usr/${ac_tool_dir}/bin/$2; then $1="/usr/${ac_tool_dir}/bin/$2"; ac_cv_prog_$1_dir=/usr/${ac_tool_dir}
- elif test -f /usr/local/${ac_tool_dir}/bin/$2; then $1="/usr/local/${ac_tool_dir}/bin/$2"; ac_cv_prog_$1_dir=/usr/local/${ac_tool_dir}
- fi
- fi
-fi
-ifelse([$3], , , [
-if test -z "$ac_cv_prog_$1"; then
-if test -n "$ac_tool_prefix"; then
- AC_CHECK_PROG($1, $2, $2, $3, $4, $5)
-else
- $1="$3"
-fi
-fi])
-])
-
-dnl tl_CHECK_TOOLS -
-dnl do a tl_CHECK_TOOL for multiple tools (like AC_CHECK_PROGS)
-dnl tl_CHECK_TOOLS(VARIABLE, PROGS-TO-CHECK-FOR [, VALUE-IF-NOT-FOUND
-dnl [, PATH]])
-AC_DEFUN(tl_CHECK_TOOLS,
-[for ac_tool in $2
-do
-tl_CHECK_TOOL($1, [$]ac_tool, [$]ac_tool, , $4)
-test -n "[$]$1" && break
-done
-ifelse([$3], , , [test -n "[$]$1" || $1="$3"
-])])
-
-dnl replace AC_PROG_CC and AC_PROG_CXX
-undefine([AC_PROG_CC])
-define([AC_PROG_CC], [tl_PROG_CC])
-undefine([AC_PROG_CXX])
-define([AC_PROG_CXX], [tl_PROG_CXX])
-
-dnl tl_PROG_CC, tl_PROG_CXX - same as old AC_PROG_CC and AC_PROG_CXX, but
-dnl use AC_CHECK_TOOL/tl_CHECK_TOOLS instead of AC_CHECK_PROG, etc.
-AC_DEFUN(tl_PROG_CC,
-[AC_BEFORE([$0], [AC_PROG_CPP])dnl
-AC_PROVIDE([AC_PROG_CC])dnl
-tl_CHECK_TOOL(CC, gcc, gcc)
-if test -z "$CC"; then
- AC_CHECK_TOOL(CC, cc, cc, , , /usr/ucb/cc)
- test -z "$CC" && AC_MSG_ERROR([no acceptable cc found in \$PATH])
-fi
-if test -n "$ac_tool_prefix" -a "`echo $CC | grep '$ac_tool_prefix'`" = "" \
- -a "`echo $CC | grep -- '-b'`" = ""; then
- if test -z "$ac_cv_prog_CC_dir" && $CC -v 2>&1 | grep -q gcc; then
- AC_CACHE_CHECK([if $CC -b${ac_tool_dir} works], tl_cv_prog_cc_bhost,[
- old_cc="${CC}"
- CC="${CC} -b${ac_tool_dir}"
- AC_LANG_SAVE
- AC_LANG_C
- AC_TRY_COMPILER([main(){return(0);}], tl_cv_prog_cc_bhost, ac_cv_prog_cc_cross)
- AC_LANG_RESTORE])
- if test $tl_cv_prog_cc_bhost = "yes"; then
- ac_cv_prog_cc_works=yes
- cctest=yes
- else
- CC="${old_cc}"
- fi
- fi
-fi
-
-if test "$cctest" != "yes"; then
- tl_PROG_CC_WORKS
-fi
-AC_PROG_CC_GNU
-
-if test $ac_cv_prog_gcc = yes; then
- GCC=yes
-dnl Check whether -g works, even if CFLAGS is set, in case the package
-dnl plays around with CFLAGS (such as to build both debugging and
-dnl normal versions of a library), tasteless as that idea is.
- ac_test_CFLAGS="${CFLAGS+set}"
- ac_save_CFLAGS="$CFLAGS"
- CFLAGS=
- AC_PROG_CC_G
- if test "$ac_test_CFLAGS" = set; then
- CFLAGS="$ac_save_CFLAGS"
- elif test $ac_cv_prog_cc_g = yes; then
- CFLAGS="-g -O2"
- else
- CFLAGS="-O2"
- fi
-else
- GCC=
- test "${CFLAGS+set}" = set || CFLAGS="-g"
-fi
projects / apt.git / blobdiff