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configure: make the cpp -P detection not clobber CPPFLAGS

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CPPPFLAGS is now CPPPFLAG. Fixes CURL_CHECK_DEF.

Fixes #958
This commit is contained in:
Craig Davison 2016-08-11 21:37:13 -06:00 committed by Daniel Stenberg
parent 4b86113f5e
commit 46398941e4
1 changed files with 7 additions and 4 deletions
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11
acinclude.m4
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@ -32,8 +32,8 @@ dnl actually be a single double-quoted string concatenating all them.
AC_DEFUN([CURL_CHECK_DEF], [
AC_REQUIRE([CURL_CPP_P])dnl
OLDCPPFLAGS=$CPPFLAGS
# CPPPFLAGS comes from CURL_CPP_P
CPPFLAGS="$CPPPFLAGS"
# CPPPFLAG comes from CURL_CPP_P
CPPFLAGS="$CPPFLAGS $CPPPFLAG"
AS_VAR_PUSHDEF([ac_HaveDef], [curl_cv_have_def_$1])dnl
AS_VAR_PUSHDEF([ac_Def], [curl_cv_def_$1])dnl
if test -z "$SED"; then
@ -3187,12 +3187,15 @@ TEST EINVAL TEST
if test "x$cpp_p" = "xno"; then
AC_MSG_WARN([failed to figure out cpp -P alternative])
# without -P
CPPPFLAGS=$OLDCPPFLAGS
CPPPFLAG=""
else
# with -P
CPPPFLAGS=$CPPFLAGS
CPPPFLAG="-P"
fi
dnl restore CPPFLAGS
CPPFLAGS=$OLDCPPFLAGS
else
# without -P
CPPPFLAG=""
fi
])