From f58591e08e63aa873a77f3e68a9186f220fcd294 Mon Sep 17 00:00:00 2001
From: Olivier Stasse <ostasse@laas.fr>
Date: Tue, 9 Jun 2020 05:28:17 +0200
Subject: [PATCH] Fix isssue #398 Do not call INSTALL(EXPORT ...) when having
 no targets but generates the Config.cmake file.

---
 package-config.cmake | 7 +++++--
 1 file changed, 5 insertions(+), 2 deletions(-)

diff --git a/package-config.cmake b/package-config.cmake
index b89d7038a..60f513444 100644
--- a/package-config.cmake
+++ b/package-config.cmake
@@ -168,9 +168,12 @@ install(
 
 # Config
 #   * <prefix>/lib/cmake/Foo/FooTargets.cmake
-install(
+if(${TARGETS_EXPORT_NAME})
+  install(
     EXPORT "${TARGETS_EXPORT_NAME}"
     NAMESPACE "${namespace}"
     DESTINATION "${CONFIG_INSTALL_DIR}"
-)
+    )
+endif(${TARGETS_EXPORT_NAME})
+
 ENDMACRO(SETUP_PROJECT_PACKAGE_FINALIZE)