[reactos] 01/01: [MKISOFS] Silence prototype warnings (#5603)

[William Kent]

https://git.reactos.org/?p=reactos.git;a=commitdiff;h=4e3bf252d83171f1f0ae9…

commit 4e3bf252d83171f1f0ae9260af622675e8ddd8a1
Author:     William Kent <wjk011(a)gmail.com>
AuthorDate: Wed Aug 23 08:37:15 2023 -0400
Commit:     GitHub <noreply(a)github.com>
CommitDate: Wed Aug 23 14:37:15 2023 +0200

    [MKISOFS] Silence prototype warnings (#5603)
    
    mkisofs and its components uses K&R-style function definitions
    to support very old compilers. Modern compilers consider K&R syntax
    to be deprecated. Clang therefore emits a large number of warnings
    over this.
---
 sdk/tools/mkisofs/CMakeLists.txt | 7 +++++++
 1 file changed, 7 insertions(+)

diff --git a/sdk/tools/mkisofs/CMakeLists.txt b/sdk/tools/mkisofs/CMakeLists.txt
index 86cd3270b0b..bd25bf36403 100644
--- a/sdk/tools/mkisofs/CMakeLists.txt
+++ b/sdk/tools/mkisofs/CMakeLists.txt
@@ -106,4 +106,11 @@ else()
     # libschily implements an own printf function with support for the %r formatter.
     # Silence compilers checking for invalid formatting sequences.
     target_compile_options(libschily PRIVATE "-Wno-format")
+
+    # mkisofs uses K&R-style function definitions to support very old compilers.
+    # This causes warnings with modern compilers.
+    target_compile_options(libmdigest PRIVATE "-Wno-deprecated-non-prototype")
+    target_compile_options(libschily PRIVATE "-Wno-deprecated-non-prototype")
+    target_compile_options(libsiconv PRIVATE "-Wno-deprecated-non-prototype")
+    target_compile_options(mkisofs PRIVATE "-Wno-deprecated-non-prototype")
 endif()