From 035c6fa9390ecb66422ee684be71eea692989009 Mon Sep 17 00:00:00 2001
From: Alex Merry <alex.merry@kde.org>
Date: Thu, 17 Apr 2014 15:46:08 +0100
Subject: Make ecm_setup_version interact well with CMP0048

When CMake policy CMP0048 (CMake 3.0) is set to NEW, the project()
command is meant to manage the project's version variables. We therefore
do not set the PROJECT_VERSION variables in this case.

To make sure projects do not have to specify their version in multiple
places, this also allows the keyword "PROJECT" to be passed to
ecm_setup_version instead of an actual version number. In this case, the
version passed to project() will be used.

REVIEW: 117619
---
 .../ECMSetupVersionTest/old_header/CMakeLists.txt  | 38 ++++++++++++++++++++++
 tests/ECMSetupVersionTest/old_header/main.c        | 24 ++++++++++++++
 2 files changed, 62 insertions(+)
 create mode 100644 tests/ECMSetupVersionTest/old_header/CMakeLists.txt
 create mode 100644 tests/ECMSetupVersionTest/old_header/main.c

(limited to 'tests/ECMSetupVersionTest/old_header')

diff --git a/tests/ECMSetupVersionTest/old_header/CMakeLists.txt b/tests/ECMSetupVersionTest/old_header/CMakeLists.txt
new file mode 100644
index 00000000..53f90820
--- /dev/null
+++ b/tests/ECMSetupVersionTest/old_header/CMakeLists.txt
@@ -0,0 +1,38 @@
+cmake_minimum_required(VERSION 2.8.12)
+
+project(old_header)
+
+set(CMAKE_MODULE_PATH ${CMAKE_CURRENT_SOURCE_DIR}/../../../modules)
+include(ECMSetupVersion)
+
+ecm_setup_version(2.3.4
+    VARIABLE_PREFIX Foo
+    VERSION_HEADER "ecm_old_header_version.h"
+)
+
+macro(strcheck var val)
+    if(NOT ${var} STREQUAL "${val}")
+        message(FATAL_ERROR "${var} was ${${var}} instead of ${val}")
+    endif()
+endmacro()
+macro(numcheck var val)
+    if(NOT ${var} EQUAL "${val}")
+        message(FATAL_ERROR "${var} was ${${var}} instead of ${val}")
+    endif()
+endmacro()
+
+strcheck(PROJECT_VERSION "2.3.4")
+strcheck(PROJECT_VERSION_STRING "2.3.4")
+numcheck(PROJECT_VERSION_MAJOR 2)
+numcheck(PROJECT_VERSION_MINOR 3)
+numcheck(PROJECT_VERSION_PATCH 4)
+
+strcheck(Foo_VERSION "2.3.4")
+strcheck(Foo_VERSION_STRING "2.3.4")
+numcheck(Foo_VERSION_MAJOR 2)
+numcheck(Foo_VERSION_MINOR 3)
+numcheck(Foo_VERSION_PATCH 4)
+numcheck(Foo_SOVERSION 2)
+
+add_executable(check_header main.c)
+target_include_directories(check_header PRIVATE "${CMAKE_CURRENT_BINARY_DIR}")
diff --git a/tests/ECMSetupVersionTest/old_header/main.c b/tests/ECMSetupVersionTest/old_header/main.c
new file mode 100644
index 00000000..1ae1679b
--- /dev/null
+++ b/tests/ECMSetupVersionTest/old_header/main.c
@@ -0,0 +1,24 @@
+#include <ecm_old_header_version.h>
+#include <string.h>
+#include <stdio.h>
+
+#define intcheck(macro,val) \
+    if (macro != val) { \
+        printf(#macro " was %d instead of %d", macro, val); \
+        return 1; \
+    }
+#define strcheck(macro,val) \
+    if (strcmp(macro,val) != 0) { \
+        printf(#macro " was %s instead of %s", macro, val); \
+        return 1; \
+    }
+
+int main()
+{
+    intcheck(Foo_VERSION_MAJOR,2)
+    intcheck(Foo_VERSION_MINOR,3)
+    intcheck(Foo_VERSION_PATCH,4)
+    intcheck(Foo_VERSION,((2 << 16) + (3 << 8) + 4))
+    strcheck(Foo_VERSION_STRING,"2.3.4")
+    return 0;
+}
-- 
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