correct is_top_level

Author: scivision

.github/workflows/ci.yml

@@ -5,6 +5,8 @@ env:
   CTEST_NO_TESTS_ACTION: error
   CTEST_PARALLEL_LEVEL: 4
   CMAKE_BUILD_PARALLEL_LEVEL: 4
+  CMAKE_INSTALL_PREFIX: ~/libs
+  CMAKE_PREFIX_PATH: ~/libs
 
 on:
   push:
@@ -70,7 +72,6 @@ jobs:
     - name: Configure
       run: >-
         cmake --preset multi
-        --install-prefix ${{ runner.temp }}
         -DBUILD_SHARED_LIBS:BOOL=${{ matrix.shared }}
 
     - name: Build / test Debug
@@ -83,7 +84,7 @@ jobs:
       run: cmake --install build
 
     - name: example workflow
-      run: cmake -S example -B example/build -DCMAKE_PREFIX_PATH=${{ runner.temp }}
+      run: cmake -S example -B example/build
 
     - run: cmake --build example/build
 

.github/workflows/ci_build.yml

@@ -3,7 +3,6 @@ name: build
 env:
   HOMEBREW_NO_INSTALL_CLEANUP: 1
   CTEST_NO_TESTS_ACTION: error
-  FC: gfortran-13
   CTEST_PARALLEL_LEVEL: 0
   CMAKE_BUILD_PARALLEL_LEVEL: 4
   CMAKE_INSTALL_PREFIX: ~/libs
@@ -30,6 +29,9 @@ jobs:
         - os: macos-latest
           shared: false
 
+    env:
+      FC: gfortran-13
+
     runs-on: ${{ matrix.os}}
 
     steps:
@@ -39,7 +41,6 @@ jobs:
       run: >-
         cmake
         -S scripts -B scripts/build
-        --install-prefix ${{ runner.temp }}
         -DBUILD_SHARED_LIBS:BOOL=${{ matrix.shared }}
 
     - name: Build/install HDF5

options.cmake

@@ -5,7 +5,9 @@ include(GNUInstallDirs)
 # this is NECESSARY for CMake 3.21 -- parent projects will error on CMake configure!
 if(CMAKE_VERSION VERSION_LESS 3.21)
   get_property(not_top DIRECTORY PROPERTY PARENT_DIRECTORY)
-  if(NOT not_top)
+  if(not_top)
+    set(${PROJECT_NAME}_IS_TOP_LEVEL false)
+  else()
     set(${PROJECT_NAME}_IS_TOP_LEVEL true)
  endif()
 endif()