No /fast targets in try_compile project mode

The try_compile command builds the cmTryCompileExec executable using the
cmTryCompileExec/fast target with Makefile generators in order to save
time since dependencies are not needed.  However, in project mode the
command builds an entire source tree that may have dependencies.
Therefore we can use the /fast target approach only in one-source mode.

3 files changed, 6 insertions, 1 deletions

diff --git a/Tests/TryCompile/Inner/CMakeLists.txt b/Tests/TryCompile/Inner/CMakeLists.txt
index 41b94ae..d62bcc4 100644
--- a/Tests/TryCompile/Inner/CMakeLists.txt
+++ b/Tests/TryCompile/Inner/CMakeLists.txt
@@ -10,4 +10,6 @@ if(NOT SHOULD_PASS)
   message(FATAL_ERROR "Inner try-compile SHOULD_PASS failed!")
 endif()
 
-add_executable(inner ../pass.c)
+add_library(innerlib innerlib.c)
+add_executable(innerexe innerexe.c)
+target_link_libraries(innerexe innerlib)
diff --git a/Tests/TryCompile/Inner/innerexe.c b/Tests/TryCompile/Inner/innerexe.c
new file mode 100644
index 0000000..9b121a1
--- /dev/null
+++ b/Tests/TryCompile/Inner/innerexe.c
@@ -0,0 +1,2 @@
+extern int innerlib(void);
+int main() { return innerlib(); }
diff --git a/Tests/TryCompile/Inner/innerlib.c b/Tests/TryCompile/Inner/innerlib.c
new file mode 100644
index 0000000..0ce1179
--- /dev/null
+++ b/Tests/TryCompile/Inner/innerlib.c
@@ -0,0 +1 @@
+int innerlib(void) { return 0; }