add missing include file to build.

diff --git a/CMakeLists.txt b/CMakeLists.txt
index cb425a43322f24cd203241ae08d4b144e63f3ba8..d7c64e7e77376564872301c40c3d2d59d885a956 100644 (file)
--- a/CMakeLists.txt
+++ b/CMakeLists.txt
@@ -180,6 +180,7 @@ set(HEADERS
   src/core/datetime.h
   src/core/file.h
   src/core/logging.h
+  src/core/optional.h
   src/core/textstream.h
   src/core/usasciicodec.h
   src/core/xmlstreamwriter.h

diff --git a/GPSBabel.pro b/GPSBabel.pro
index 21e85825ead9b211071ddd84e9da449853ecc487..691b784ec5e39df488e346fbbada59f490416c35 100644 (file)
--- a/GPSBabel.pro
+++ b/GPSBabel.pro
@@ -165,6 +165,7 @@ HEADERS =  \
        src/core/datetime.h \
        src/core/file.h \
        src/core/logging.h \
+       src/core/optional.h \
        src/core/textstream.h \
        src/core/usasciicodec.h \
        src/core/xmlstreamwriter.h \