cmake: use `check_symbol_exists` for rand functions

`check_symbol_exists` is superior to `check_function_exists`; use it consistently in our cmake configuration

cmake: use `check_symbol_exists` for rand functions
`check_symbol_exists` is superior to `check_function_exists`; use it consistently in our cmake configuration
02ab53ce · Edward Thomson · 9908c076 · 02ab53ce
Commit 02ab53ce authored May 12, 2023 by Edward Thomson
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src/CMakeLists.txt
+2 -2

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--- a/src/CMakeLists.txt
+++ b/src/CMakeLists.txt
@@ -84,8 +84,8 @@ check_prototype_definition_safe(qsort_s
 # random / entropy data
-check_function_exists(getentropy GIT_RAND_GETENTROPY)
+check_symbol_exists(getentropy unistd.h GIT_RAND_GETENTROPY)
-check_function_exists(getloadavg GIT_RAND_GETLOADAVG)
+check_symbol_exists(getloadavg stdlib.h GIT_RAND_GETLOADAVG)
 # poll