Add a bit more explicit message, to help confused users

[elogind.git] / configure.ac

diff --git a/configure.ac b/configure.ac
index d3f853f30c129450538df1b273d4f883b5c39135..45526f4a54c0e0719a7894fefabab1a77989f986 100644 (file)
--- a/configure.ac
+++ b/configure.ac
@@ -101,6 +101,20 @@ if test -z "$GPERF" ; then
         AC_MSG_ERROR([*** gperf not found])
 fi
 
+# ------------------------------------------------------------------------------
+address_sanitizer_cflags=
+address_sanitizer_cppflags=
+address_sanitizer_ldflags=
+AC_ARG_ENABLE(address-sanitizer, AS_HELP_STRING([--enable-address-sanitizer], [enable -fsanitize=address]))
+AS_IF([test "x$enable_address_sanitizer" = "xyes"], [
+            CC_CHECK_FLAG_APPEND([with_as_cflags], [CFLAGS], [-fsanitize=address])
+            AS_IF([test -z "$with_as_cflags"],
+                  [AC_MSG_ERROR([*** -fsanitize=address is not supported])])
+            address_sanitizer_cflags="$with_as_cflags -fno-omit-frame-pointer -DVALGRIND=1"
+            address_sanitizer_cppflags="-DVALGRIND=1"
+            address_sanitizer_ldflags="-Wc,-fsanitize=address"
+      ])
+
 CC_CHECK_FLAGS_APPEND([with_cflags], [CFLAGS], [\
         -pipe \
         -Wall \
@@ -142,13 +156,13 @@ CC_CHECK_FLAGS_APPEND([with_cflags], [CFLAGS], [\
         -fdata-sections \
         -fstack-protector \
         --param=ssp-buffer-size=4])
-AC_SUBST([OUR_CFLAGS], $with_cflags)
+AC_SUBST([OUR_CFLAGS], "$with_cflags $address_sanitizer_cflags")
 
 AS_CASE([$CFLAGS], [*-O[[12345g\ ]]*],
         [CC_CHECK_FLAGS_APPEND([with_cppflags], [CPPFLAGS], [\
                -Wp,-D_FORTIFY_SOURCE=2])],
         [AC_MSG_RESULT([skipping -D_FORTIFY_SOURCE, optimization not enabled])])
-AC_SUBST([OUR_CPPFLAGS], $with_cppflags)
+AC_SUBST([OUR_CPPFLAGS], "$with_cppflags $address_sanitizer_cppflags")
 
 CC_CHECK_FLAGS_APPEND([with_ldflags], [LDFLAGS], [\
         -Wl,--as-needed \
@@ -156,7 +170,7 @@ CC_CHECK_FLAGS_APPEND([with_ldflags], [LDFLAGS], [\
         -Wl,--gc-sections \
         -Wl,-z,relro \
         -Wl,-z,now])
-AC_SUBST([OUR_LDFLAGS], $with_ldflags)
+AC_SUBST([OUR_LDFLAGS], "$with_ldflags $address_sanitizer_ldflags")
 
 # ------------------------------------------------------------------------------
 # we use python to build the man page index, and for systemd-python
@@ -175,9 +189,12 @@ AS_IF([test "x$PYTHON_BINARY" = "x"],
              [PYTHON_BINARY=/usr/bin/python])])
 AC_ARG_VAR(PYTHON_BINARY, [Python binary used to launch installed scripts])
 
+AS_IF([test "x$have_python" != "xyes" -a "x$enable_python_devel" = "xyes"],
+      [AC_MSG_ERROR([*** python-devel support requires --with-python])])
+
 have_python_devel=no
 AC_ARG_ENABLE(python_devel, AS_HELP_STRING([--disable-python-devel], [Do not build python modules]))
-AS_IF([test "x$enable_python_devel" != "xno"], [
+AS_IF([test "x$have_python" = "xyes" -a "x$enable_python_devel" != "xno"], [
       PKG_CHECK_MODULES([PYTHON_DEVEL], [python-${PYTHON_VERSION}],
             [have_python_devel=yes],
             [PKG_CHECK_MODULES([PYTHON_DEVEL], [python],
@@ -185,6 +202,7 @@ AS_IF([test "x$enable_python_devel" != "xno"], [
                   [have_python_devel=no])])
       AS_IF([test "x$have_python_devel" = xno -a "x$enable_python_devel" = xyes],
             [AC_MSG_ERROR([*** python-devel support requested but libraries not found])])
+      AC_PATH_PROGS(SPHINX_BUILD, sphinx-build-${PYTHON_VERSION} sphinx-build)
 ])
 AM_CONDITIONAL([HAVE_PYTHON_DEVEL], [test "$have_python_devel" = "yes"])
 
@@ -1051,6 +1069,7 @@ AC_MSG_RESULT([
         SysV rc?.d directories:  ${SYSTEM_SYSVRCND_PATH}
         Build Python:            ${PYTHON}
         Installation Python:     ${PYTHON_BINARY}
+        sphinx binary:           ${SPHINX_BUILD}
         firmware path:           ${FIRMWARE_PATH}
         PAM modules dir:         ${with_pamlibdir}
         PAM configuration dir:   ${with_pamconfdir}