From: Lasse Collin <lasse.collin@tukaani.org>
Date: Sat, 17 Feb 2024 20:18:12 +0000 (+0200)
Subject: CMake: Keep build working even if lib/*.[ch] are removed.
X-Git-Tag: v5.6.0~35
X-Git-Url: http://git.ipfire.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=2edd1a35b2507d1ce68b52dbaebe23c4850a74ce;p=thirdparty%2Fxz.git

CMake: Keep build working even if lib/*.[ch] are removed.
---

diff --git a/CMakeLists.txt b/CMakeLists.txt
index 323533a4..79b6f95a 100644
--- a/CMakeLists.txt
+++ b/CMakeLists.txt
@@ -1336,7 +1336,12 @@ add_library(libgnu OBJECT)
 
 # CMake requires that even an object library must have at least once source
 # file. So we give it a header file that results in no output files.
-target_sources(libgnu PRIVATE lib/getopt.in.h)
+#
+# NOTE: Using a file outside the lib directory makes it possible to
+# delete lib/*.h and lib/*.c and still keep the build working if
+# getopt_long replacement isn't needed. It's convenient if one wishes
+# to be certain that no GNU LGPL code gets included in the binaries.
+target_sources(libgnu PRIVATE src/common/sysdefs.h)
 
 # The Ninja Generator requires setting the linker language since it cannot
 # guess the programming language of just a header file. Setting this