From b1e19235802df83b85e42510462a1d47851c1f70 Mon Sep 17 00:00:00 2001
From: Krishna Vedala <7001608+kvedala@users.noreply.github.com>
Date: Fri, 29 May 2020 14:04:14 -0400
Subject: [PATCH] check if math library is available and include if present

---
 CMakeLists.txt                   | 2 ++
 conversions/CMakeLists.txt       | 7 ++-----
 misc/CMakeLists.txt              | 6 ++----
 numerical_methods/CMakeLists.txt | 7 +++----
 project_euler/CMakeLists.txt     | 7 +++----
 searching/CMakeLists.txt         | 6 ++----
 sorting/CMakeLists.txt           | 6 ++----
 7 files changed, 16 insertions(+), 25 deletions(-)

diff --git a/CMakeLists.txt b/CMakeLists.txt
index 03e5371d..20ab85a0 100644
--- a/CMakeLists.txt
+++ b/CMakeLists.txt
@@ -46,6 +46,8 @@ if(MSVC)
     add_compile_options(/Za)
 endif(MSVC)
 
+find_library(MATH_LIBRARY m)
+
 add_subdirectory(conversions)
 add_subdirectory(misc)
 add_subdirectory(project_euler)
diff --git a/conversions/CMakeLists.txt b/conversions/CMakeLists.txt
index d48b58a6..6ff51c3f 100644
--- a/conversions/CMakeLists.txt
+++ b/conversions/CMakeLists.txt
@@ -16,12 +16,9 @@ foreach( testsourcefile ${APP_SOURCES} )
     if(OpenMP_C_FOUND)
         target_link_libraries(${testname} OpenMP::OpenMP_C)
     endif()
-    if (CMAKE_CXX_COMPILER_ID STREQUAL "Clang")
-        target_link_libraries(${testname} m)
-    elseif (CMAKE_CXX_COMPILER_ID STREQUAL "GNU")
-        target_link_libraries(${testname} m)
+    if(MATH_LIBRARY)
+        target_link_libraries(${testname} ${MATH_LIBRARY})
     endif()
-
     install(TARGETS ${testname} DESTINATION "bin/conversions")
 
 endforeach( testsourcefile ${APP_SOURCES} )
diff --git a/misc/CMakeLists.txt b/misc/CMakeLists.txt
index b2500be6..6a7dd981 100644
--- a/misc/CMakeLists.txt
+++ b/misc/CMakeLists.txt
@@ -16,10 +16,8 @@ foreach( testsourcefile ${APP_SOURCES} )
     if(OpenMP_C_FOUND)
         target_link_libraries(${testname} OpenMP::OpenMP_C)
     endif()
-    if (CMAKE_CXX_COMPILER_ID STREQUAL "Clang")
-        target_link_libraries(${testname} m)
-    elseif (CMAKE_CXX_COMPILER_ID STREQUAL "GNU")
-        target_link_libraries(${testname} m)
+    if(MATH_LIBRARY)
+        target_link_libraries(${testname} ${MATH_LIBRARY})
     endif()
     install(TARGETS ${testname} DESTINATION "bin/misc")
 
diff --git a/numerical_methods/CMakeLists.txt b/numerical_methods/CMakeLists.txt
index 81000766..945fd99f 100644
--- a/numerical_methods/CMakeLists.txt
+++ b/numerical_methods/CMakeLists.txt
@@ -24,10 +24,9 @@ foreach( testsourcefile ${APP_SOURCES} )
     if(OpenMP_C_FOUND)
         target_link_libraries(${testname} OpenMP::OpenMP_C)
     endif()
-    if (CMAKE_CXX_COMPILER_ID STREQUAL "Clang")
-        target_link_libraries(${testname} m)
-    elseif (CMAKE_CXX_COMPILER_ID STREQUAL "GNU")
-        target_link_libraries(${testname} m)
+    
+    if(MATH_LIBRARY)
+        target_link_libraries(${testname} ${MATH_LIBRARY})
     endif()
     install(TARGETS ${testname} DESTINATION "bin/numerical_methods")
 
diff --git a/project_euler/CMakeLists.txt b/project_euler/CMakeLists.txt
index 70f18faf..1e896582 100644
--- a/project_euler/CMakeLists.txt
+++ b/project_euler/CMakeLists.txt
@@ -19,10 +19,9 @@ foreach( testsourcefile ${APP_SOURCES} )
     if(OpenMP_C_FOUND)
         target_link_libraries(${testname} OpenMP::OpenMP_C)
     endif()
-    if (CMAKE_CXX_COMPILER_ID STREQUAL "Clang")
-        target_link_libraries(${testname} m)
-    elseif (CMAKE_CXX_COMPILER_ID STREQUAL "GNU")
-        target_link_libraries(${testname} m)
+    
+    if(MATH_LIBRARY)
+        target_link_libraries(${testname} ${MATH_LIBRARY})
     endif()
     install(TARGETS ${testname} DESTINATION "bin/misc")
 
diff --git a/searching/CMakeLists.txt b/searching/CMakeLists.txt
index 3d29def6..f51852b5 100644
--- a/searching/CMakeLists.txt
+++ b/searching/CMakeLists.txt
@@ -16,10 +16,8 @@ foreach( testsourcefile ${APP_SOURCES} )
     if(OpenMP_C_FOUND)
         target_link_libraries(${testname} OpenMP::OpenMP_C)
     endif()
-    if (CMAKE_CXX_COMPILER_ID STREQUAL "Clang")
-        target_link_libraries(${testname} m)
-    elseif (CMAKE_CXX_COMPILER_ID STREQUAL "GNU")
-        target_link_libraries(${testname} m)
+    if(MATH_LIBRARY)
+        target_link_libraries(${testname} ${MATH_LIBRARY})
     endif()
     install(TARGETS ${testname} DESTINATION "bin/searching")
 
diff --git a/sorting/CMakeLists.txt b/sorting/CMakeLists.txt
index e361d575..e3ff0d66 100644
--- a/sorting/CMakeLists.txt
+++ b/sorting/CMakeLists.txt
@@ -16,10 +16,8 @@ foreach( testsourcefile ${APP_SOURCES} )
     if(OpenMP_C_FOUND)
         target_link_libraries(${testname} OpenMP::OpenMP_C)
     endif()
-    if (CMAKE_CXX_COMPILER_ID STREQUAL "Clang")
-        target_link_libraries(${testname} m)
-    elseif (CMAKE_CXX_COMPILER_ID STREQUAL "GNU")
-        target_link_libraries(${testname} m)
+    if(MATH_LIBRARY)
+        target_link_libraries(${testname} ${MATH_LIBRARY})
     endif()
     install(TARGETS ${testname} DESTINATION "bin/sorting")