From b65dd145ea7dbf0734df76edea74d13e59ca71b3 Mon Sep 17 00:00:00 2001
From: houndthe <houndthe@protonmail.com>
Date: Sat, 22 Jan 2022 04:06:53 +0100
Subject: [PATCH] Hide usage of MD5 into #ifdef crypto

---
 libyara/modules/elf/elf.c | 9 +++++++++
 1 file changed, 9 insertions(+)

diff --git a/libyara/modules/elf/elf.c b/libyara/modules/elf/elf.c
index 4a7b305ff9..4731147f6f 100644
--- a/libyara/modules/elf/elf.c
+++ b/libyara/modules/elf/elf.c
@@ -177,6 +177,9 @@ define_function(telfhash)
   return_string(YR_UNDEFINED);
 }
 
+#if defined(HAVE_LIBCRYPTO) || defined(HAVE_WINCRYPT_H) || \
+    defined(HAVE_COMMONCRYPTO_COMMONCRYPTO_H)
+
 define_function(import_md5)
 {
   YR_OBJECT* obj = module();
@@ -270,6 +273,8 @@ define_function(import_md5)
   return_string(YR_UNDEFINED);
 }
 
+#endif  // defined(HAVE_LIBCRYPTO) || defined(HAVE_WINCRYPT_H)
+
 int get_elf_class_data(const uint8_t* buffer, size_t buffer_length)
 {
   elf_ident_t* elf_ident;
@@ -972,7 +977,11 @@ begin_declarations
   end_struct_array("dynsym")
 
   declare_function("telfhash", "", "s", telfhash);
+
+#if defined(HAVE_LIBCRYPTO) || defined(HAVE_WINCRYPT_H) || \
+    defined(HAVE_COMMONCRYPTO_COMMONCRYPTO_H)
   declare_function("import_md5", "", "s", import_md5);
+#endif  // defined(HAVE_LIBCRYPTO) || defined(HAVE_WINCRYPT_H)
 
 end_declarations