The handling of the optional version argument in the find_dependency()
macro is just wrong. It is only set if ${ARGV1} (rather than ARGV1)
evaluates to true, and otherwise it remains unchanged from whatever its
previous value was (instead of being cleared).
Either of the attached patches fixes this.
Alex
>From 57b10901f1f857bde0471f2be4398dace5c36253 Mon Sep 17 00:00:00 2001
From: Alex Merry <k...@randomguy3.me.uk>
Date: Sat, 22 Feb 2014 13:35:14 +0000
Subject: [PATCH] Always set version variable of find_dependency macro
If there is no ARGV1, that is fine; version will be made empty, and no
version will be passed to find_package().
---
Modules/CMakeFindDependencyMacro.cmake | 4 +---
1 file changed, 1 insertion(+), 3 deletions(-)
diff --git a/Modules/CMakeFindDependencyMacro.cmake b/Modules/CMakeFindDependencyMacro.cmake
index 0f1f56d..c0a0ef7 100644
--- a/Modules/CMakeFindDependencyMacro.cmake
+++ b/Modules/CMakeFindDependencyMacro.cmake
@@ -29,9 +29,7 @@
macro(find_dependency dep)
if (NOT ${dep}_FOUND)
- if (${ARGV1})
- set(version ${ARGV1})
- endif()
+ set(version ${ARGV1})
set(exact_arg)
if(${CMAKE_FIND_PACKAGE_NAME}_FIND_VERSION_EXACT)
set(exact_arg EXACT)
--
1.9.0
>From d9da7a712d331e647d94fc12162e2c4df29ca7eb Mon Sep 17 00:00:00 2001
From: Alex Merry <k...@randomguy3.me.uk>
Date: Sat, 22 Feb 2014 13:35:14 +0000
Subject: [PATCH] Fix settings of the version variable of find_dependency macro
It should be reset before use, as this is a macro, and the test should
be against ARGV1, not its value.
---
Modules/CMakeFindDependencyMacro.cmake | 3 ++-
1 file changed, 2 insertions(+), 1 deletion(-)
diff --git a/Modules/CMakeFindDependencyMacro.cmake b/Modules/CMakeFindDependencyMacro.cmake
index 0f1f56d..6f7dbe8 100644
--- a/Modules/CMakeFindDependencyMacro.cmake
+++ b/Modules/CMakeFindDependencyMacro.cmake
@@ -29,7 +29,8 @@
macro(find_dependency dep)
if (NOT ${dep}_FOUND)
- if (${ARGV1})
+ set(version)
+ if (ARGV1)
set(version ${ARGV1})
endif()
set(exact_arg)
--
1.9.0
--
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