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-rw-r--r--ares/configure.ac12
-rw-r--r--ares/m4/cares-compilers.m474
2 files changed, 64 insertions, 22 deletions
diff --git a/ares/configure.ac b/ares/configure.ac
index 685caa131..0a6a5fcd3 100644
--- a/ares/configure.ac
+++ b/ares/configure.ac
@@ -886,13 +886,13 @@ AC_SUBST(CARES_PRIVATE_LIBS)
dnl squeeze whitespace out of some variables
-CFLAGS=`eval echo $CFLAGS`
-CPPFLAGS=`eval echo $CPPFLAGS`
-DEFS=`eval echo $DEFS`
-LDFLAGS=`eval echo $LDFLAGS`
-LIBS=`eval echo $LIBS`
+squeeze CFLAGS
+squeeze CPPFLAGS
+squeeze DEFS
+squeeze LDFLAGS
+squeeze LIBS
-CARES_PRIVATE_LIBS=`eval echo $CARES_PRIVATE_LIBS`
+squeeze CARES_PRIVATE_LIBS
AC_CONFIG_FILES([Makefile libcares.pc])
AC_OUTPUT
diff --git a/ares/m4/cares-compilers.m4 b/ares/m4/cares-compilers.m4
index 97339ee4f..2b00dffc5 100644
--- a/ares/m4/cares-compilers.m4
+++ b/ares/m4/cares-compilers.m4
@@ -16,7 +16,7 @@
#***************************************************************************
# File version for 'aclocal' use. Keep it a single number.
-# serial 34
+# serial 35
dnl CARES_CHECK_COMPILER
@@ -378,6 +378,7 @@ dnl headers from these locations, even though this is
dnl not reliable on ancient GNUC versions.
AC_DEFUN([CARES_CONVERT_INCLUDE_TO_ISYSTEM], [
+ AC_REQUIRE([CARES_SHFUNC_SQUEEZE])dnl
tmp_has_include="no"
tmp_chg_FLAGS=$CFLAGS
for word1 in $tmp_chg_FLAGS; do
@@ -390,7 +391,8 @@ AC_DEFUN([CARES_CONVERT_INCLUDE_TO_ISYSTEM], [
if test "$tmp_has_include" = "yes"; then
tmp_chg_FLAGS=`echo $tmp_chg_FLAGS | sed 's/^-I/ -isystem /g'`
tmp_chg_FLAGS=`echo $tmp_chg_FLAGS | sed 's/ -I/ -isystem /g'`
- CFLAGS=`eval echo $tmp_chg_FLAGS`
+ CFLAGS="$tmp_chg_FLAGS"
+ squeeze CFLAGS
fi
tmp_has_include="no"
tmp_chg_FLAGS=$CPPFLAGS
@@ -404,7 +406,8 @@ AC_DEFUN([CARES_CONVERT_INCLUDE_TO_ISYSTEM], [
if test "$tmp_has_include" = "yes"; then
tmp_chg_FLAGS=`echo $tmp_chg_FLAGS | sed 's/^-I/ -isystem /g'`
tmp_chg_FLAGS=`echo $tmp_chg_FLAGS | sed 's/ -I/ -isystem /g'`
- CPPFLAGS=`eval echo $tmp_chg_FLAGS`
+ CPPFLAGS="$tmp_chg_FLAGS"
+ squeeze CPPFLAGS
fi
])
@@ -487,6 +490,7 @@ dnl options.
AC_DEFUN([CARES_SET_COMPILER_BASIC_OPTS], [
AC_REQUIRE([CARES_CHECK_COMPILER])dnl
+ AC_REQUIRE([CARES_SHFUNC_SQUEEZE])dnl
#
if test "$compiler_id" != "unknown"; then
#
@@ -615,13 +619,15 @@ AC_DEFUN([CARES_SET_COMPILER_BASIC_OPTS], [
#
esac
#
- tmp_CPPFLAGS=`eval echo $tmp_CPPFLAGS`
- tmp_CFLAGS=`eval echo $tmp_CFLAGS`
+ squeeze tmp_CPPFLAGS
+ squeeze tmp_CFLAGS
#
if test ! -z "$tmp_CFLAGS" || test ! -z "$tmp_CPPFLAGS"; then
AC_MSG_CHECKING([if compiler accepts some basic options])
- CPPFLAGS=`eval echo $tmp_save_CPPFLAGS $tmp_CPPFLAGS`
- CFLAGS=`eval echo $tmp_save_CFLAGS $tmp_CFLAGS`
+ CPPFLAGS="$tmp_save_CPPFLAGS $tmp_CPPFLAGS"
+ CFLAGS="$tmp_save_CFLAGS $tmp_CFLAGS"
+ squeeze CPPFLAGS
+ squeeze CFLAGS
CARES_COMPILER_WORKS_IFELSE([
AC_MSG_RESULT([yes])
AC_MSG_NOTICE([compiler options added: $tmp_CFLAGS $tmp_CPPFLAGS])
@@ -646,6 +652,7 @@ dnl on configure's debug option.
AC_DEFUN([CARES_SET_COMPILER_DEBUG_OPTS], [
AC_REQUIRE([CARES_CHECK_OPTION_DEBUG])dnl
AC_REQUIRE([CARES_CHECK_COMPILER])dnl
+ AC_REQUIRE([CARES_SHFUNC_SQUEEZE])dnl
#
if test "$compiler_id" != "unknown"; then
#
@@ -667,8 +674,10 @@ AC_DEFUN([CARES_SET_COMPILER_DEBUG_OPTS], [
tmp_options="$flags_dbg_off"
fi
#
- CPPFLAGS=`eval echo $tmp_CPPFLAGS`
- CFLAGS=`eval echo $tmp_CFLAGS $tmp_options`
+ CPPFLAGS="$tmp_CPPFLAGS"
+ CFLAGS="$tmp_CFLAGS $tmp_options"
+ squeeze CPPFLAGS
+ squeeze CFLAGS
CARES_COMPILER_WORKS_IFELSE([
AC_MSG_RESULT([yes])
AC_MSG_NOTICE([compiler options added: $tmp_options])
@@ -692,6 +701,7 @@ dnl on configure's optimize option.
AC_DEFUN([CARES_SET_COMPILER_OPTIMIZE_OPTS], [
AC_REQUIRE([CARES_CHECK_OPTION_OPTIMIZE])dnl
AC_REQUIRE([CARES_CHECK_COMPILER])dnl
+ AC_REQUIRE([CARES_SHFUNC_SQUEEZE])dnl
#
if test "$compiler_id" != "unknown"; then
#
@@ -740,8 +750,10 @@ AC_DEFUN([CARES_SET_COMPILER_OPTIMIZE_OPTS], [
AC_MSG_CHECKING([if compiler accepts optimizer disabling options])
tmp_options="$flags_opt_off"
fi
- CPPFLAGS=`eval echo $tmp_CPPFLAGS`
- CFLAGS=`eval echo $tmp_CFLAGS $tmp_options`
+ CPPFLAGS="$tmp_CPPFLAGS"
+ CFLAGS="$tmp_CFLAGS $tmp_options"
+ squeeze CPPFLAGS
+ squeeze CFLAGS
CARES_COMPILER_WORKS_IFELSE([
AC_MSG_RESULT([yes])
AC_MSG_NOTICE([compiler options added: $tmp_options])
@@ -766,6 +778,7 @@ dnl configure's warnings given option.
AC_DEFUN([CARES_SET_COMPILER_WARNING_OPTS], [
AC_REQUIRE([CARES_CHECK_OPTION_WARNINGS])dnl
AC_REQUIRE([CARES_CHECK_COMPILER])dnl
+ AC_REQUIRE([CARES_SHFUNC_SQUEEZE])dnl
#
if test "$compiler_id" != "unknown"; then
#
@@ -982,13 +995,15 @@ AC_DEFUN([CARES_SET_COMPILER_WARNING_OPTS], [
#
esac
#
- tmp_CPPFLAGS=`eval echo $tmp_CPPFLAGS`
- tmp_CFLAGS=`eval echo $tmp_CFLAGS`
+ squeeze tmp_CPPFLAGS
+ squeeze tmp_CFLAGS
#
if test ! -z "$tmp_CFLAGS" || test ! -z "$tmp_CPPFLAGS"; then
AC_MSG_CHECKING([if compiler accepts strict warning options])
- CPPFLAGS=`eval echo $tmp_save_CPPFLAGS $tmp_CPPFLAGS`
- CFLAGS=`eval echo $tmp_save_CFLAGS $tmp_CFLAGS`
+ CPPFLAGS="$tmp_save_CPPFLAGS $tmp_CPPFLAGS"
+ CFLAGS="$tmp_save_CFLAGS $tmp_CFLAGS"
+ squeeze CPPFLAGS
+ squeeze CFLAGS
CARES_COMPILER_WORKS_IFELSE([
AC_MSG_RESULT([yes])
AC_MSG_NOTICE([compiler options added: $tmp_CFLAGS $tmp_CPPFLAGS])
@@ -1005,6 +1020,28 @@ AC_DEFUN([CARES_SET_COMPILER_WARNING_OPTS], [
])
+dnl CARES_SHFUNC_SQUEEZE
+dnl -------------------------------------------------
+dnl Declares a shell function squeeze() which removes
+dnl redundant whitespace out of a shell variable.
+
+AC_DEFUN([CARES_SHFUNC_SQUEEZE], [
+squeeze() {
+ _sqz_result=""
+ eval _sqz_input=\[$][$]1
+ for _sqz_token in $_sqz_input; do
+ if test -z "$_sqz_result"; then
+ _sqz_result="$_sqz_token"
+ else
+ _sqz_result="$_sqz_result $_sqz_token"
+ fi
+ done
+ eval [$]1=\$_sqz_result
+ return 0
+}
+])
+
+
dnl CARES_PROCESS_DEBUG_BUILD_OPTS
dnl -------------------------------------------------
dnl Settings which depend on configure's debug given
@@ -1013,6 +1050,7 @@ dnl Don't use this macro for compiler dependant stuff.
AC_DEFUN([CARES_PROCESS_DEBUG_BUILD_OPTS], [
AC_REQUIRE([CARES_CHECK_OPTION_DEBUG])dnl
+ AC_REQUIRE([CARES_SHFUNC_SQUEEZE])dnl
AC_BEFORE([$0],[AC_PROG_LIBTOOL])dnl
#
if test "$want_debug" = "yes"; then
@@ -1031,6 +1069,7 @@ AC_DEFUN([CARES_PROCESS_DEBUG_BUILD_OPTS], [
dnl CHECKME: Do we still need so specify this include path here?
CPPFLAGS="$CPPFLAGS -I$srcdir/../include"
+ squeeze CPPFLAGS
fi
#
])
@@ -1094,6 +1133,7 @@ dnl as whitespace separated lists of words. Each word
dnl from VALUE is removed from VARNAME when present.
AC_DEFUN([CARES_VAR_STRIP], [
+ AC_REQUIRE([CARES_SHFUNC_SQUEEZE])dnl
ac_var_stripped=""
for word1 in $[$1]; do
ac_var_strip_word="no"
@@ -1107,5 +1147,7 @@ AC_DEFUN([CARES_VAR_STRIP], [
fi
done
dnl squeeze whitespace out of result
- [$1]=`eval echo $ac_var_stripped`
+ [$1]="$ac_var_stripped"
+ squeeze [$1]
])
+
generated by cgit v1.2.3 (git 2.25.1) at 2024-07-05 10:59:13 +0000