commit 0b54f72e940503adfbd978d7f1dedc3da4799f52
author Rolf Eike Beer <eike@sf-mail.de> Mon Apr 15 22:19:03 2019 +0200
committer Brad King <brad.king@kitware.com> Tue Apr 16 13:31:27 2019 -0400
tree 6e439c912466fbb17c094bdbd2c1312ca07f39a9
parent 5e98111643e22ad515afa2bf48a92573b6987115

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

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 @@
     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()

Tests/FindBoost/CMakeLists.txt

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 @@
   --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 ()

Tests/FindBoost/TestPython/CMakeLists.txt

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 ()