Support for specified CC

(cherry picked from commit b6e518e1a310e63051f4643fdc0a0d0db08cb3ee)

fix-check-static-when-build-by-clang.patch

@@ -0,0 +1,11 @@
+diff -Nur a/src/libpcp/src/check-statics b/src/libpcp/src/check-statics
+--- a/src/libpcp/src/check-statics	2024-09-03 16:45:00.384830188 +0800
++++ b/src/libpcp/src/check-statics	2024-09-03 16:46:04.184830354 +0800
+@@ -254,6 +254,7 @@
+     ?__emutls_v.curcontext	# thread private (*BSD, MinGW)
+     ?__emutls_t.curr_ctxp	# thread private (*BSD, MinGW)
+     ?__emutls_t.curr_handle	# thread private (*BSD, MinGW)
++    __pmDumpContext             # llvm
+ 
+ derive_fetch.o
+     ?promote			# const

pcp.spec

@@ -2,12 +2,13 @@
 
 Name:    pcp
 Version: 6.2.2
-Release: 2
+Release: 3
 Summary: System-level performance monitoring and performance management
 License: GPL-2.0-or-later AND LGPL-2.1-or-later AND CC-BY-3.0
 URL:     https://pcp.io
 
 Source0: https://github.com/performancecopilot/pcp/archive/refs/tags/%{version}.tar.gz
+Patch0:  fix-check-static-when-build-by-clang.patch
 
 # The additional linker flags break out-of-tree PMDAs.
 # https://bugzilla.redhat.com/show_bug.cgi?id=2043092
@@ -2095,7 +2096,10 @@ updated policy package.
 
 
 %prep
-%autosetup -p1
+%setup -q
+%if "%{?toolchain}" == "clang"                                                                                                                   
+%patch0 -p1
+%endif
 
 %build
 # the buildsubdir macro gets defined in %%setup and is apparently only available in the next step (i.e. the %%build step)
@@ -2106,7 +2110,10 @@ _build=`echo %{release} | sed -e 's/\..*$//'`
 sed -i "/PACKAGE_BUILD/s/=[0-9]*/=$_build/" VERSION.pcp
 
 export PYTHON=python%{?default_python}
-%configure %{?_with_initd} %{?_with_doc} %{?_with_dstat} %{?_with_ib} %{?_with_statsd} %{?_with_perfevent} %{?_with_bcc} %{?_with_bpf} %{?_with_bpftrace} %{?_with_json} %{?_with_mongodb} %{?_with_snmp} %{?_with_nutcracker} %{?_with_python2}
+%if "%{?toolchain}" == "clang"
+export HOSTCC=clang
+%endif
+%configure %{?_with_initd} %{?_with_doc} %{?_with_dstat} %{?_with_ib} %{?_with_statsd} %{?_with_perfevent} %{?_with_bcc} %{?_with_bpf} %{?_with_bpftrace} %{?_with_json} %{?_with_mongodb} %{?_with_snmp} %{?_with_nutcracker} %{?_with_python3}
 make %{?_smp_mflags} default_pcp
 
 pushd src/pmdas/bpf/modules
@@ -3178,6 +3185,9 @@ fi
 
 
 %changelog
+* Tue Sep 03 2024 wangqiang <wangqiang1@kylinos.cn> - 6.2.2-3
+- Support to build with clang
+
 * Wed Jun 05 2024 Wenlong Zhang <zhangwenlong@loongson.cn> - 6.2.2-2
 - fix build error for loongarch64