Made -fpch-deps a default flag if PCH is enabled

This helps to build things correctly if a dependency like fdstream.h
changes, or there is an external update to a package.

1 files changed, 1 insertions, 0 deletions

diff --git a/acprep b/acprep
index d76d9f52..2d059894 100755
--- a/acprep
+++ b/acprep
@@ -752,6 +752,7 @@ class PrepareBuild(CommandLineApp):
 
         self.configure_args.append('--enable-pch')
 
+        self.CXXFLAGS.append('-fpch-deps')
         self.CXXFLAGS.append('-Wconversion')
         #self.CXXFLAGS.append('-Wold-style-cast')