depends: Avoid `warning: "_FORTIFY_SOURCE" redefined` for `libevent` #32266

hebasto commented at 3:23 PM on April 14, 2025: member

On Alpine Linux 3.12.3, compiling the libevent package produces multiple warnings:

$ gmake -C depends -j $(nproc) libevent
<snip>
<command-line>: warning: "_FORTIFY_SOURCE" redefined
<built-in>: note: this is the location of the previous definition
<snip>

This PR fixes these warnings.

depends: Avoid `warning: "_FORTIFY_SOURCE" redefined` for `libevent`

On Alpine Linux 3.12.3, compiling the `libevent` package produces
multiple warnings:
```
$ gmake -C depends -j $(nproc) libevent
<snip>
<command-line>: warning: "_FORTIFY_SOURCE" redefined
<built-in>: note: this is the location of the previous definition
<snip>
```

fe71a4b139

hebasto added the label Build system on Apr 14, 2025

DrahtBot commented at 3:23 PM on April 14, 2025: contributor

The following sections might be updated with supplementary metadata relevant to reviewers and maintainers.

Code Coverage & Benchmarks

For details see: https://corecheck.dev/bitcoin/bitcoin/pulls/32266.

Reviews

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Type	Reviewers
ACK	shahsb, theuni, maflcko

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shahsb commented at 4:59 AM on April 16, 2025: none

concept ACK

shahsb commented at 5:06 AM on April 16, 2025: none

ACK https://github.com/bitcoin/bitcoin/pull/32266/commits/fe71a4b139f3a142468c2e931775813bc8f9d2ad

maflcko added the label DrahtBot Guix build requested on Apr 16, 2025

DrahtBot commented at 2:32 AM on April 17, 2025: contributor

Guix builds (on x86_64) [untrusted test-only build, possibly unsafe, not for production use]

File	commit cdc32994feadf3f15df3cfac5baae36b4b011462<br>(master)	commit 23c93027e731210ec49cab09b57f72869ab78ea2<br>(pull/32266/merge)
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*-aarch64-linux-gnu.tar.gz		`6e1681f42a3c1c32...`
*-arm-linux-gnueabihf-debug.tar.gz		`681eb96b55fa0810...`
*-arm-linux-gnueabihf.tar.gz		`6b242544b25bb8a5...`
*-arm64-apple-darwin-codesigning.tar.gz		`968bf945d3fc9edb...`
*-arm64-apple-darwin-unsigned.tar.gz		`d79ee2a2097c2b34...`
*-arm64-apple-darwin-unsigned.zip		`915c63931b8f2c97...`
*-powerpc64-linux-gnu-debug.tar.gz		`2547a2c7da236ae6...`
*-powerpc64-linux-gnu.tar.gz		`5b6bf82684164553...`
*-riscv64-linux-gnu-debug.tar.gz		`f4c791ffaf7d8d26...`
*-riscv64-linux-gnu.tar.gz		`fd3798029e4a00c7...`
*-x86_64-apple-darwin-codesigning.tar.gz		`3bb3e6adfe45522d...`
*-x86_64-apple-darwin-unsigned.tar.gz		`13c96cd7a9503524...`
*-x86_64-apple-darwin-unsigned.zip		`eaaaedf72475ae1b...`
*-x86_64-linux-gnu-debug.tar.gz		`64e36f8ccd2dfee4...`
*-x86_64-linux-gnu.tar.gz		`a130bf087798147b...`
*.tar.gz		`058000d52f1718bf...`
SHA256SUMS.part		`09bb5ff23c7628d0...`
guix_build.log	`056629295102080d...`	`7776af114a397f4a...`
guix_build.log.diff		`27ccd5cc6b668612...`

DrahtBot removed the label DrahtBot Guix build requested on Apr 17, 2025

DrahtBot added the label CI failed on Apr 28, 2025

DrahtBot removed the label CI failed on May 2, 2025

DrahtBot added the label CI failed on Jun 14, 2025

DrahtBot removed the label CI failed on Jun 16, 2025

achow101 requested review from willcl-ark on Oct 22, 2025

achow101 requested review from laanwj on Oct 22, 2025

achow101 requested review from theuni on Oct 22, 2025

achow101 requested review from m3dwards on Oct 22, 2025

theuni approved

theuni commented at 2:40 PM on October 22, 2025: member

utACK fe71a4b139f3a142468c2e931775813bc8f9d2ad

maflcko commented at 2:43 PM on October 22, 2025: member

lgtm ACK fe71a4b139f3a142468c2e931775813bc8f9d2ad

ref: https://github.com/bitcoin/bitcoin/blob/7d27af98c7cf858b5ab5a02e64f89a857cc53172/CMakeLists.txt#L508

fanquake merged this on Oct 23, 2025

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