From: Lucian Petrut <lpetrut@cloudbasesolutions.com>
Date: Mon, 21 Aug 2023 06:27:24 +0000 (+0000)
Subject: cmake: honor WITH_FMT_HEADER_ONLY with vendored fmt lib
X-Git-Tag: v19.0.0~575^2~13
X-Git-Url: http://git.apps.os.sepia.ceph.com/?a=commitdiff_plain;h=a09b70dfd8ebfab3b641206568a8c6f9b3d6404d;p=ceph-ci.git

cmake: honor WITH_FMT_HEADER_ONLY with vendored fmt lib

We're using the vendored fmt lib when there is no system library
available. However, there is an inconsistency: the
WITH_FMT_HEADER_ONLY setting is ignored by the vendored library.

In order to address this, we'll use the fmt-header-only alias
if WITH_FMT_HEADER_ONLY is set.

Signed-off-by: Lucian Petrut <lpetrut@cloudbasesolutions.com>
---

diff --git a/src/CMakeLists.txt b/src/CMakeLists.txt
index 2d2d7f67ee4..21f83a44b67 100644
--- a/src/CMakeLists.txt
+++ b/src/CMakeLists.txt
@@ -335,6 +335,9 @@ else()
   set(old_BUILD_SHARED_LIBS ${BUILD_SHARED_LIBS})
   set(BUILD_SHARED_LIBS FALSE)
   add_subdirectory(fmt)
+  if (WITH_FMT_HEADER_ONLY)
+    add_library(fmt::fmt ALIAS fmt-header-only)
+  endif()
   set(BUILD_SHARED_LIBS ${old_BUILD_SHARED_LIBS})
   unset(old_BUILD_SHARED_LIBS)
   include_directories(SYSTEM "${CMAKE_SOURCE_DIR}/src/fmt/include")