From b8ff847b26ac8c1a11f1c585db9977eb3108a00e Mon Sep 17 00:00:00 2001
From: Cheng Li <cheng@kubuds.cn>
Date: Tue, 9 Apr 2024 23:17:27 +0800
Subject: [PATCH] Add clang support for unzip 6.0

Signed-off-by: Cheng Li <cheng@kubuds.cn>
---
 unzip-6.0-support-clang-build.patch | 73 +++++++++++++++++++++++++++++
 unzip.spec                          | 13 ++++-
 2 files changed, 84 insertions(+), 2 deletions(-)
 create mode 100644 unzip-6.0-support-clang-build.patch

diff --git a/unzip-6.0-support-clang-build.patch b/unzip-6.0-support-clang-build.patch
new file mode 100644
index 0000000..e1dd34c
--- /dev/null
+++ b/unzip-6.0-support-clang-build.patch
@@ -0,0 +1,73 @@
+From 3ac162e9f6ff4b138f3141af2b5c345b9c9b4ee1 Mon Sep 17 00:00:00 2001
+From: Cheng Li <cheng@kubuds.cn>
+Date: Tue, 9 Apr 2024 13:46:50 +0000
+Subject: [PATCH] unzip-6.0-support-clang-build
+
+---
+ unix/Makefile  | 15 +++++++++------
+ unix/configure |  2 ++
+ 2 files changed, 11 insertions(+), 6 deletions(-)
+
+diff --git a/unix/Makefile b/unix/Makefile
+index ab32270..3de8873 100644
+--- a/unix/Makefile
++++ b/unix/Makefile
+@@ -42,12 +42,12 @@
+ # such as -DDOSWILD).
+
+ # UnZip flags
+-CC = cc#	try using "gcc" target rather than changing this (CC and LD
++CC ?= cc#	try using "gcc" target rather than changing this (CC and LD
+ LD = $(CC)#	must match, else "unresolved symbol:  ___main" is possible)
+ AS = as
+ LOC = $(D_USE_BZ2) $(LOCAL_UNZIP)
+ AF = $(LOC)
+-CFLAGS = -O
++CFLAGS ?= -O
+ CF_NOOPT = -I. -I$(IZ_BZIP2) -DUNIX $(LOC)
+ CF = $(CFLAGS) $(CF_NOOPT)
+ LFLAGS1 =
+@@ -547,6 +547,9 @@ generic:	flags	   # now try autoconfigure first
+ generic_gcc:
+	$(MAKE) $(MAKEF) generic CC=gcc IZ_BZIP2="$(IZ_BZIP2)"
+
++generic_clang:
++	$(MAKE) $(MAKEF) generic CC=clang IZ_BZIP2="$(IZ_BZIP2)"
++
+ # extensions to perform SVR4 package-creation after compilation
+ generic_pkg:	generic svr4package
+ generic_gccpkg:	generic_gcc svr4package
+@@ -594,13 +597,13 @@ generic_shlib:	unix_make
+	@echo\
+  'which is UnZip linked with the DLL).  This target is an example only.'
+	@echo ""
+-	$(MAKE) objsdll CC=gcc CFLAGS="-O3 -Wall -fPIC -DDLL"
+-	gcc -shared -Wl,-soname,libunzip.so.0 -o libunzip.so.0.4 $(OBJSDLL)
++	$(MAKE) objsdll CFLAGS="-O3 -Wall -fPIC -DDLL"
++	$(CC) -shared -Wl,-soname,libunzip.so.0 -o libunzip.so.0.4 $(OBJSDLL)
+	$(RM) libunzip.so.0 libunzip.so
+	$(LN) -s libunzip.so.0.4 libunzip.so.0
+	$(LN) -s libunzip.so.0 libunzip.so
+-	gcc -c -O unzipstb.c
+-	gcc -o unzip_shlib unzipstb.o -L. -lunzip
++	$(CC) -c -O unzipstb.c
++	$(CC) -o unzip_shlib unzipstb.o -L. -lunzip
+
+ #----------------------------------------------------------------------------
+ #  "Autoconfig" group, aliases for the generic targets using configure:
+diff --git a/unix/configure b/unix/configure
+index 4d6f867..c231721 100755
+--- a/unix/configure
++++ b/unix/configure
+@@ -432,6 +432,8 @@ if [ $? -ne 0 ]; then
+   done
+   if [ ${OPT} ]; then
+     LFLAGS2="${LFLAGS2} ${OPT}"
++  elif [ "$CC" == "clang" ]; then
++    CFLAGSR="${CFLAGSR}"
+   else
+     CFLAGSR="${CFLAGSR} -DNO_DIR"
+   fi
+--
+2.41.0
+
diff --git a/unzip.spec b/unzip.spec
index 1872512..1513000 100644
--- a/unzip.spec
+++ b/unzip.spec
@@ -1,6 +1,6 @@
 Name:           unzip
 Version:        6.0
-Release:        51
+Release:        52
 Summary:        A utility for unpacking zip files
 License:        Info-ZIP,Public Domain
 URL:            http://www.info-zip.org/UnZip.html
@@ -29,6 +29,7 @@ Patch0020:      unzip-6.0-alt-iconv-utf8-print.patch
 Patch0021:      0001-Fix-CVE-2016-9844-rhbz-1404283.patch
 Patch0022:      unzip-6.0-timestamp.patch
 Patch0023:      unzip-6.0-cve-2018-1000035-heap-based-overflow.patch
+Patch0024:      unzip-6.0-support-clang-build.patch
 
 Patch6000:      CVE-2018-18384.patch
 Patch6001:      CVE-2019-13232-pre.patch
@@ -58,8 +59,13 @@ Package help includes man pages for unzip.
 
 %build
 export RPM_OPT_FLAGS="$RPM_OPT_FLAGS -fPIE"
-%make_build -f unix/Makefile CF_NOOPT="-I. -DUNIX $RPM_OPT_FLAGS -DNOMEMCPY -DIZ_HAVE_UXUIDGID -DNO_LCHMOD" \
+%if "%{?toolchain}" == "clang"
+    %make_build -f unix/Makefile CF_NOOPT="-I. -DUNIX $RPM_OPT_FLAGS -DNOMEMCPY -DIZ_HAVE_UXUIDGID -DNO_LCHMOD" \
+                      LFLAGS2="-Wl,-z,relro -pie" generic_clang
+%else
+    %make_build -f unix/Makefile CF_NOOPT="-I. -DUNIX $RPM_OPT_FLAGS -DNOMEMCPY -DIZ_HAVE_UXUIDGID -DNO_LCHMOD" \
                       LFLAGS2="-Wl,-z,relro -pie" generic_gcc
+%endif
 
 %install
 %make_install -f unix/Makefile prefix=$RPM_BUILD_ROOT%{_prefix} MANDIR=$RPM_BUILD_ROOT%{_mandir}/man1 INSTALL="cp -p"
@@ -76,6 +82,9 @@ make check -f unix/Makefile
 %{_mandir}/man1/*
 
 %changelog
+* Sun Apr 7 2024 licheng <cheng@kubuds.cn> - 6.0-52
+- add support for clang
+
 * Sat Mar 4 2023 yanglongkang <yanglongkang@h-partners.com> - 6.0-51
 - add "PIE" compiler options
 
-- 
Gitee