Fix bazel build gcc 15 (#185)

Author: noajshu

.bazelrc

@@ -1,2 +1,13 @@
 common --enable_bzlmod --enable_workspace
+
+# Automatically apply build:<os> sections based on host OS.
+common --enable_platform_specific_config
+
 build --cxxopt='-std=c++20'
+
+# Needed to fix issues like this which arose in GCC 15 on Linux:
+# "error: relocation refers to local symbol [...], which is defined in a discarded section"
+# We keep it linux-only so macos does not receive GNU ld flags
+build:linux --copt=-ffunction-sections
+build:linux --copt=-fdata-sections
+build:linux --linkopt=-Wl,--gc-sections