update build file

CMakeLists.txt

@@ -73,11 +73,38 @@ if(NOT HTSLIB_INCLUDE_DIR OR NOT HTSLIB_LIBRARY)
   message(FATAL_ERROR "Could not find htslib")
 endif()
 
+## set GLS_INCLUDE_DIR
+find_path(GSL_INCLUDE_DIR NAMES gsl/gsl_version.h HINTS /usr/local/include)
+find_library(GSL_LIBRARY NAMES gsl PATHS /usr/local/lib)
 
+if(NOT GSL_INCLUDE_DIR OR NOT GSL_LIBRARY)
+  find_path(GSL_INCLUDE_DIR NAMES gsl/gsl_version.h HINTS "C:/Program Files/gsl/include")
+  find_library(GSL_LIBRARY NAMES gsl PATHS "C:/Program Files/gsl/lib")
+endif()
+## find gls on macos NEED TO BE TESTED
+if(NOT GSL_INCLUDE_DIR OR NOT GSL_LIBRARY)
+  find_path(GSL_INCLUDE_DIR NAMES gsl/gsl_version.h HINTS "/usr/local/Cellar/gsl")
+  find_library(GSL_LIBRARY NAMES gsl PATHS "/usr/local/Cellar/gsl")
+endif()
+# /opt/homebrew/opt/gsl
+if(NOT GSL_INCLUDE_DIR OR NOT GSL_LIBRARY)
+  find_path(GSL_INCLUDE_DIR NAMES gsl/gsl_version.h HINTS "/opt/homebrew/opt/gsl/include")
+  find_library(GSL_LIBRARY NAMES gsl PATHS "/opt/homebrew/opt/gsl/lib")
+endif()
+## if not search in  /opt/homebrew/Cellar/gsl
+if(NOT GSL_INCLUDE_DIR OR NOT GSL_LIBRARY)
+  find_path(GSL_INCLUDE_DIR NAMES gsl/gsl_version.h HINTS "/opt/homebrew/Cellar/gsl")
+  find_library(GSL_LIBRARY NAMES gsl PATHS "/opt/homebrew/Cellar/gsl")
+endif()
+
+if(NOT GSL_INCLUDE_DIR OR NOT GSL_LIBRARY)
+  message(FATAL_ERROR "Could not find gsl")
+endif()
 
 
 add_executable(mstatspop ${SOURCE_FILE})
 target_include_directories(mstatspop PRIVATE "lib")
+target_include_directories(mstatspop PRIVATE ${GLS_INCLUDE_DIR})
 target_compile_options(mstatspop PRIVATE -DinGSL=1)
 target_link_libraries(mstatspop  ${HTSLIB_LIBRARY} -lm -lgsl -lgslcblas -lz logging )
 # target_link_libraries(mstatspop PRIVATE  )