[c89stringutils_tests/test_c89stringutils/CMakeLists.txt] Skip hashing on SunOS

Author: SamuelMarks

c89stringutils_tests/test_c89stringutils/CMakeLists.txt

@@ -7,9 +7,16 @@ string(REPLACE " " "_" EXEC_NAME "${EXEC_NAME}")
 
 set(DOWNLOAD_DIR "${PROJECT_BINARY_DIR}/test_downloads")
 file(MAKE_DIRECTORY "${DOWNLOAD_DIR}")
+
+set(GREATEST_SHA256 "1292593d95c35eeccc89ffa1c91d6fe53b49f81cbf2c2b7758842b7f3186fcc2")
 file(DOWNLOAD "https://raw.githubusercontent.com/silentbicycle/greatest/11a6af1/greatest.h"
-        "${DOWNLOAD_DIR}/greatest.h"
-        EXPECTED_HASH "SHA256=1292593d95c35eeccc89ffa1c91d6fe53b49f81cbf2c2b7758842b7f3186fcc2")
+        "${DOWNLOAD_DIR}/greatest.h")
+if (NOT CMAKE_SYSTEM_NAME STREQUAL "SunOS")
+    file(SHA256 "${DOWNLOAD_DIR}/greatest.h" GREATEST_SHA256_FOUND)
+    if (NOT GREATEST_SHA256_FOUND STREQUAL GREATEST_SHA256)
+        message(FATAL_ERROR "Hashes don't match on \"${DOWNLOAD_DIR}/greatest.h\" download")
+    endif (NOT GREATEST_SHA256_FOUND STREQUAL GREATEST_SHA256)
+endif (CMAKE_SYSTEM_NAME STREQUAL "SunOS")
 
 #########
 # Tests #