diff options
| -rw-r--r-- | configure.ac | 12 |
1 files changed, 12 insertions, 0 deletions
diff --git a/configure.ac b/configure.ac index 5991f2d9e93..13d8fe7473c 100644 --- a/configure.ac +++ b/configure.ac @@ -23,9 +23,21 @@ dnl along with GNU Emacs. If not, see <http://www.gnu.org/licenses/>. AC_PREREQ(2.65) AC_INIT(emacs, 24.3.50) + dnl This is the documented way to record the args passed to configure, dnl rather than $ac_configure_args. emacs_config_options="$@" +## Add some environment variables, if they were passed via the environment +## rather than on the command-line. +for var in CFLAGS CPPFLAGS LDFLAGS; do + case "$emacs_config_options" in + *$var=*) continue ;; + esac + eval val="\$${var}" + test x"$val" = x && continue + emacs_config_options="${emacs_config_options}${emacs_config_options:+ }$var=$val" +done + AC_CONFIG_HEADER(src/config.h:src/config.in) AC_CONFIG_SRCDIR(src/lisp.h) AC_CONFIG_AUX_DIR(build-aux) |