add direct source dependency to each library

Fix library generation with some CMake generators by including a direct
source file dependency for each library.

2 files changed, 2 insertions, 1 deletions

diff --git a/crypto/CMakeLists.txt b/crypto/CMakeLists.txt
index 8956884..bb43432 100644
--- a/crypto/CMakeLists.txt
+++ b/crypto/CMakeLists.txt
@@ -1009,7 +1009,7 @@ target_include_directories(crypto_obj
         PUBLIC
                 ../include)
 
-add_library(crypto $<TARGET_OBJECTS:crypto_obj>)
+add_library(crypto $<TARGET_OBJECTS:crypto_obj> empty.c)
 
 export_symbol(crypto ${CMAKE_CURRENT_BINARY_DIR}/crypto_p.sym)
 target_link_libraries(crypto ${PLATFORM_LIBS})
diff --git a/crypto/Makefile.am b/crypto/Makefile.am
index bc3d4c2..e380fdf 100644
--- a/crypto/Makefile.am
+++ b/crypto/Makefile.am
@@ -32,6 +32,7 @@ endif
 EXTRA_DIST = VERSION
 EXTRA_DIST += CMakeLists.txt
 EXTRA_DIST += crypto.sym
+EXTRA_DIST += empty.c
 
 # needed for a CMake target
 EXTRA_DIST += compat/strcasecmp.c