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Mon, 29 Dec 2025 12:45:13 -0800 (PST) Received: from apollo.tail3ccdd3.ts.net ([2601:646:8201:fd20::28b]) by smtp.gmail.com with ESMTPSA id a92af1059eb24-1217253c23csm118090355c88.9.2025.12.29.12.45.12 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Mon, 29 Dec 2025 12:45:12 -0800 (PST) From: Khem Raj To: Srinivas Pandruvada , platform-driver-x86@vger.kernel.org, linux-kernel@vger.kernel.org Cc: Khem Raj Subject: [PATCH] tools/power/x86/intel-speed-select: Use pkg-config for libnl-3.0 detection Date: Mon, 29 Dec 2025 12:45:06 -0800 Message-ID: <20251229204506.720353-1-raj.khem@gmail.com> X-Mailer: git-send-email 2.52.0 Precedence: bulk X-Mailing-List: linux-kernel@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Transfer-Encoding: quoted-printable Content-Type: text/plain; charset="utf-8" Replace hardcoded libnl3 include path with pkg-config detection to improve portability across different distributions and build environments. The previous implementation used a fixed path constructed from the compiler's sysroot, which could fail on systems with non-standard library installations. Now the build system: - Attempts to detect libnl-3.0 include paths using pkg-config - Falls back to /usr/include/libnl3 if pkg-config is unavailable - Maintains backward compatibility with existing build configurations This ensures the tool builds correctly on a wider range of systems while preserving existing behavior when pkg-config is not present. Closes:https://bugzilla.kernel.org/show_bug.cgi?id=3D220819 Signed-off-by: Khem Raj --- tools/power/x86/intel-speed-select/Makefile | 8 +++++++- 1 file changed, 7 insertions(+), 1 deletion(-) diff --git a/tools/power/x86/intel-speed-select/Makefile b/tools/power/x86/= intel-speed-select/Makefile index 8d3a02a20f3d..6b299aae2ded 100644 --- a/tools/power/x86/intel-speed-select/Makefile +++ b/tools/power/x86/intel-speed-select/Makefile @@ -13,7 +13,13 @@ endif # Do not use make's built-in rules # (this improves performance and avoids hard-to-debug behaviour); MAKEFLAGS +=3D -r -override CFLAGS +=3D -O2 -Wall -g -D_GNU_SOURCE -I$(OUTPUT)include -I$(she= ll $(CC) -print-sysroot)/usr/include/libnl3 + +NL3_CFLAGS =3D $(shell pkg-config --cflags libnl-3.0 2>/dev/null) +ifeq ($(NL3_CFLAGS),) +NL3_CFLAGS =3D -I/usr/include/libnl3 +endif + +override CFLAGS +=3D -O2 -Wall -g -D_GNU_SOURCE -I$(OUTPUT)include $(NL3_C= FLAGS) override LDFLAGS +=3D -lnl-genl-3 -lnl-3 =20 ALL_TARGETS :=3D intel-speed-select