Merge bitcoin/bitcoin#27326: guix: combine and document enable_werror

4becee396f3bda40832138dd1aaa90368ed31857 guix: combine and document enable_werror (fanquake)

Pull request description:

  Combine into `hardened-glibc`.
  Document why we don't use `--disable-werror` directly.

  https://www.gnu.org/software/libc/manual/html_node/Configuring-and-compiling.html
  > By default, the GNU C Library is built with -Werror. If you wish
  > to build without this option (for example, if building with a
  > newer version of GCC than this version of the GNU C Library was
  > tested with, so new warnings cause the build with -Werror to fail),
  > you can configure with --disable-werror.

ACKs for top commit:
  hebasto:
    ACK 4becee396f3bda40832138dd1aaa90368ed31857, the diff is correct.
  TheCharlatan:
    ACK 4becee396f3bda40832138dd1aaa90368ed31857

Tree-SHA512: 8724415f51b4d72d40c4e797faf52c93a81147fb629332b9388ffd7f113f2b16db3b7496bf3063dd978ac629fd5bde3ec7df4f1ff1ed714cb56f316a9334d119
This commit is contained in:
fanquake 2023-03-27 14:55:11 +01:00 committed by pasta
parent 12afe0c995
commit 30f6c4985b
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@ -149,7 +149,7 @@ chain for " target " development."))
#:key
(base-gcc-for-libc base-gcc)
(base-kernel-headers base-linux-kernel-headers)
(base-libc (hardened-glibc (make-glibc-without-werror glibc-2.28)))
(base-libc (hardened-glibc glibc-2.28))
(base-gcc (make-gcc-rpath-link (hardened-gcc base-gcc))))
"Convenience wrapper around MAKE-CROSS-TOOLCHAIN with default values
desirable for building Dash Core release binaries."
@ -501,15 +501,16 @@ and endian independent.")
inspecting signatures in Mach-O binaries.")
(license license:expat))))
(define (make-glibc-without-werror glibc)
(package-with-extra-configure-variable glibc "enable_werror" "no"))
;; https://www.gnu.org/software/libc/manual/html_node/Configuring-and-compiling.html
;; We don't use --disable-werror directly, as that would be passed through to bash,
;; and cause it's build to fail.
(define (hardened-glibc glibc)
(package-with-extra-configure-variable (
package-with-extra-configure-variable glibc
"--enable-stack-protector" "strong")
"--enable-bind-now" "yes"))
package-with-extra-configure-variable (
package-with-extra-configure-variable glibc
"enable_werror" "no")
"--enable-stack-protector" "strong")
"--enable-bind-now" "yes"))
(define-public glibc-2.28
(package