From 0b54f72e940503adfbd978d7f1dedc3da4799f52 Mon Sep 17 00:00:00 2001
From: Rolf Eike Beer <eike@sf-mail.de>
Date: Mon, 15 Apr 2019 22:19:03 +0200
Subject: FindBoost: Fix detection with version suffixes on Gentoo

The Gentoo case added by commit 1673923c30 (FindBoost: Add support for
Boost 1.67 with Python version suffixes, 2018-03-18, v3.11.0~3^2) left
out the `.` version component separator and instead duplicated the RPM
case.  Add the missing `.` now.

Fixes: #18743
---
 Modules/FindBoost.cmake                   |  2 +-
 Tests/FindBoost/CMakeLists.txt            | 13 +++++++++++++
 Tests/FindBoost/TestPython/CMakeLists.txt | 17 +++++++++++++++++
 3 files changed, 31 insertions(+), 1 deletion(-)
 create mode 100644 Tests/FindBoost/TestPython/CMakeLists.txt

diff --git a/Modules/FindBoost.cmake b/Modules/FindBoost.cmake
index 7882c4b..ed32cbb 100644
--- a/Modules/FindBoost.cmake
+++ b/Modules/FindBoost.cmake
@@ -1756,7 +1756,7 @@ foreach(COMPONENT ${Boost_FIND_COMPONENTS})
     list(APPEND _Boost_FIND_LIBRARY_HINTS_FOR_COMPONENT_NAME "${COMPONENT_UNVERSIONED}${COMPONENT_PYTHON_VERSION_MAJOR}-py${COMPONENT_PYTHON_VERSION_MAJOR}${COMPONENT_PYTHON_VERSION_MINOR}")
     list(APPEND _Boost_FIND_LIBRARY_HINTS_FOR_COMPONENT_NAME "${COMPONENT_UNVERSIONED}-py${COMPONENT_PYTHON_VERSION_MAJOR}${COMPONENT_PYTHON_VERSION_MINOR}")
     # Gentoo
-    list(APPEND _Boost_FIND_LIBRARY_HINTS_FOR_COMPONENT_NAME "${COMPONENT_UNVERSIONED}-${COMPONENT_PYTHON_VERSION_MAJOR}${COMPONENT_PYTHON_VERSION_MINOR}")
+    list(APPEND _Boost_FIND_LIBRARY_HINTS_FOR_COMPONENT_NAME "${COMPONENT_UNVERSIONED}-${COMPONENT_PYTHON_VERSION_MAJOR}.${COMPONENT_PYTHON_VERSION_MINOR}")
     # RPMs
     list(APPEND _Boost_FIND_LIBRARY_HINTS_FOR_COMPONENT_NAME "${COMPONENT_UNVERSIONED}-${COMPONENT_PYTHON_VERSION_MAJOR}${COMPONENT_PYTHON_VERSION_MINOR}")
   endif()
diff --git a/Tests/FindBoost/CMakeLists.txt b/Tests/FindBoost/CMakeLists.txt
index 17a8ec7..58d795b 100644
--- a/Tests/FindBoost/CMakeLists.txt
+++ b/Tests/FindBoost/CMakeLists.txt
@@ -33,3 +33,16 @@ add_test(NAME FindBoost.TestHeaders COMMAND
   --build-options ${build_options}
   --test-command ${CMAKE_CTEST_COMMAND} -V -C $<CONFIGURATION>
   )
+
+if (CMake_TEST_FindBoost_Python)
+  add_test(NAME FindBoost.TestPython COMMAND
+    ${CMAKE_CTEST_COMMAND} -C $<CONFIGURATION>
+    --build-and-test
+    "${CMake_SOURCE_DIR}/Tests/FindBoost/TestPython"
+    "${CMake_BINARY_DIR}/Tests/FindBoost/TestPython"
+    ${build_generator_args}
+    --build-project TestFindBoostPython
+    --build-options ${build_options}
+    --test-command ${CMAKE_CTEST_COMMAND} -V -C $<CONFIGURATION>
+    )
+endif ()
diff --git a/Tests/FindBoost/TestPython/CMakeLists.txt b/Tests/FindBoost/TestPython/CMakeLists.txt
new file mode 100644
index 0000000..4d137ca
--- /dev/null
+++ b/Tests/FindBoost/TestPython/CMakeLists.txt
@@ -0,0 +1,17 @@
+cmake_minimum_required(VERSION 3.14)
+project(TestFindBoostPython CXX)
+include(CTest)
+
+find_package(Boost OPTIONAL_COMPONENTS python27 python34 python35 python36 python37)
+
+set(FAILTEST TRUE)
+foreach (v IN ITEMS 27 34 35 36 37)
+  if (Boost_PYTHON${v}_FOUND)
+    set(FAILTEST FALSE)
+    break()
+  endif ()
+endforeach ()
+
+if (FAILTEST)
+  message(FATAL_ERROR "No Boost Python module found")
+endif ()
-- 
cgit v0.12