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-rw-r--r--erts/emulator/sys/unix/sys.c3
1 files changed, 2 insertions, 1 deletions
diff --git a/erts/emulator/sys/unix/sys.c b/erts/emulator/sys/unix/sys.c
index 267f7d07aa..50b208848f 100644
--- a/erts/emulator/sys/unix/sys.c
+++ b/erts/emulator/sys/unix/sys.c
@@ -1325,7 +1325,8 @@ static char **build_unix_environment(char *block)
}
for (j = 0; j < i; j++) {
- if (cpp[j][strlen(cpp[j])-1] == '=') {
+ size_t last = strlen(cpp[j])-1;
+ if (cpp[j][last] == '=' && strchr(cpp[j], '=') == cpp[j]+last) {
cpp[j] = cpp[--len];
}
}