[Buildroot] [PATCH 3/3] package/htop: fix hwloc static build

[Fabrice Fontaine]

Fix the following static build failure with hwloc raised since commit
c83bf9720632bcd4d438094a9fc30feff69fc555:

checking for hwloc_get_proc_cpubind in -lhwloc... no
configure: error: can not find required library libhwloc

Fixes:
 - http://autobuild.buildroot.org/results/5d815ec08c580005a863df6ac9ac29deff7d4128

Signed-off-by: Fabrice Fontaine <fontaine.fabrice at gmail.com>
---
 ...igure.ac-fix-static-build-with-hwloc.patch | 54 +++++++++++++++++++
 1 file changed, 54 insertions(+)
 create mode 100644 package/htop/0001-configure.ac-fix-static-build-with-hwloc.patch

diff --git a/package/htop/0001-configure.ac-fix-static-build-with-hwloc.patch b/package/htop/0001-configure.ac-fix-static-build-with-hwloc.patch
new file mode 100644
index 0000000000..0ac79766c5
--- /dev/null
+++ b/package/htop/0001-configure.ac-fix-static-build-with-hwloc.patch
@@ -0,0 +1,54 @@
+From 4ccad4604586c921b4ad831b254496c2cdece9fc Mon Sep 17 00:00:00 2001
+From: Fabrice Fontaine <fontaine.fabrice at gmail.com>
+Date: Sat, 2 Apr 2022 17:27:01 +0200
+Subject: [PATCH] configure.ac: fix static build with hwloc
+
+Retrieve hwloc dependencies through pkg-config to avoid the following
+static build failure:
+
+checking for hwloc_get_proc_cpubind in -lhwloc... no
+configure: error: can not find required library libhwloc
+
+This build failure is raised because without pkg-config, hwloc
+dependencies such as libxml2 are not retrieved:
+
+configure:8999: checking for hwloc_get_proc_cpubind in -lhwloc
+configure:9022: /home/autobuild/autobuild/instance-0/output-1/host/bin/powerpc-buildroot-linux-uclibc-gcc -o conftest -D_GNU_SOURCE -I/home/autobuild/autobuild/instance-0/output-1/host/powerpc-buildroot-linux-uclibc/sysroot/usr/bin/../../usr/include -D_LARGEFILE_SOURCE -D_LARGEFILE64_SOURCE -D_FILE_OFFSET_BITS=64  -Og -g0  -static -D_LARGEFILE_SOURCE -D_LARGEFILE64_SOURCE -D_FILE_OFFSET_BITS=64  -static conftest.c -lhwloc  -llzma -L/home/autobuild/autobuild/instance-0/output-1/host/powerpc-buildroot-linux-uclibc/sysroot/usr/bin/../../usr/lib -lncurses -lm   >&5
+/home/autobuild/autobuild/instance-0/output-1/host/lib/gcc/powerpc-buildroot-linux-uclibc/10.3.0/../../../../powerpc-buildroot-linux-uclibc/bin/ld: /home/autobuild/autobuild/instance-0/output-1/host/powerpc-buildroot-linux-uclibc/sysroot/usr/bin/../../usr/lib/libhwloc.a(topology-xml-libxml.o): in function `hwloc_libxml_free_buffer':
+topology-xml-libxml.c:(.text+0x6a): undefined reference to `xmlFree'
+
+Fixes:
+ - http://autobuild.buildroot.org/results/5d815ec08c580005a863df6ac9ac29deff7d4128
+
+Signed-off-by: Fabrice Fontaine <fontaine.fabrice at gmail.com>
+[Retrieved from:
+https://github.com/htop-dev/htop/commit/4ccad4604586c921b4ad831b254496c2cdece9fc]
+---
+ configure.ac | 14 ++++++++++++--
+ 1 file changed, 12 insertions(+), 2 deletions(-)
+
+diff --git a/configure.ac b/configure.ac
+index 4ecac1ecf..6bb7eb69f 100644
+--- a/configure.ac
++++ b/configure.ac
+@@ -456,8 +456,18 @@ case "$enable_hwloc" in
+    no)
+       ;;
+    yes)
+-      AC_CHECK_LIB([hwloc], [hwloc_get_proc_cpubind], [], [AC_MSG_ERROR([can not find required library libhwloc])])
+-      AC_CHECK_HEADERS([hwloc.h], [], [AC_MSG_ERROR([can not find require header file hwloc.h])])
++      m4_ifdef([PKG_PROG_PKG_CONFIG], [
++         PKG_PROG_PKG_CONFIG()
++         PKG_CHECK_MODULES(HWLOC, hwloc, [
++               CFLAGS="$CFLAGS $HWLOC_CFLAGS" LIBS="$LIBS $HWLOC_LIBS"
++            ], [
++               AC_CHECK_LIB([hwloc], [hwloc_get_proc_cpubind], [], [AC_MSG_ERROR([can not find required library libhwloc])])
++               AC_CHECK_HEADERS([hwloc.h], [], [AC_MSG_ERROR([can not find require header file hwloc.h])])
++            ])
++         ], [
++            AC_CHECK_LIB([hwloc], [hwloc_get_proc_cpubind], [], [AC_MSG_ERROR([can not find required library libhwloc])])
++            AC_CHECK_HEADERS([hwloc.h], [], [AC_MSG_ERROR([can not find require header file hwloc.h])])
++         ])
+       ;;
+    *)
+       AC_MSG_ERROR([bad value '$enable_hwloc' for --enable-hwloc])
-- 
2.35.1