diff options
| -rw-r--r-- | configure.ac | 8 |
1 files changed, 7 insertions, 1 deletions
diff --git a/configure.ac b/configure.ac index fe56ff382ce8..7d58d676b7a3 100644 --- a/configure.ac +++ b/configure.ac @@ -2079,7 +2079,7 @@ AC_ARG_WITH(gssapi, AC_ARG_WITH(iwyu, AS_HELP_STRING([--with-iwyu], - [Provide IWYU binary path to check unneeded includes instead of building. + [Use given IWYU binary path to check unneeded includes instead of building. Use only if you are hacking on it.]), ,) @@ -12512,6 +12512,12 @@ AC_SUBST(PARALLELISM) IWYU_PATH="$with_iwyu" AC_SUBST(IWYU_PATH) +if test ! -z "$IWYU_PATH"; then + if test ! -f "$IWYU_PATH"; then + AC_MSG_ERROR([cannot find include-what-you-use binary specified by --with-iwyu]) + fi +fi + # # Set up ILIB for MSVC build # |