diff --git a/grpc.changes b/grpc.changes
index 83d60b4..f02552f 100644
--- a/grpc.changes
+++ b/grpc.changes
@@ -1,3 +1,11 @@
+-------------------------------------------------------------------
+Wed Apr  3 09:05:38 UTC 2024 - Antonio Larrosa <alarrosa@suse.com>
+
+- abseil-cpp 20240116 in SP5 can't be used with gcc7 when using 
+  -DCMAKE_CXX_STANDARD=17 since it tries to use the <filesystem>
+  header file so revert last change to "switch build
+  compiler back to default on SLE-15" to use gcc12 again.
+
 -------------------------------------------------------------------
 Sun Mar 10 11:59:06 UTC 2024 - Jan Engelhardt <jengelh@inai.de>
 
diff --git a/grpc.spec b/grpc.spec
index cfae2df..401cf28 100644
--- a/grpc.spec
+++ b/grpc.spec
@@ -34,6 +34,11 @@ Patch5:         Fix-compilation-on-RHEL-7-ppc64le-gcc-4.8.patch
 BuildRequires:  abseil-cpp-devel
 BuildRequires:  cmake
 BuildRequires:  fdupes
+%if 0%{?suse_version} < 1550
+BuildRequires:  gcc12-c++
+%else
+BuildRequires:  gcc-c++
+%endif
 BuildRequires:  opencensus-proto-source
 BuildRequires:  pkg-config
 BuildRequires:  pkgconfig(libcares) >= 1.19.1
@@ -139,6 +144,12 @@ popd
 rm -Rf third_party/abseil-cpp/
 
 %build
+%if 0%{?suse_version} < 1550
+export CC=gcc-12
+export CXX=g++-12
+%endif
+%define _lto_cflags %nil
+
 # protoc is invoked strangely; make it happy with this dir or it will assert()
 mkdir -p third_party/protobuf/src