Bug 908835

Summary:	=sci-libs/trilinos-14.0.0: optimization CXXFLAGS not respected
Product:	Gentoo Linux	Reporter:	Michael Orlitzky <mjo>
Component:	Current packages	Assignee:	Matthias Maier <tamiko>
Status:	IN_PROGRESS ---
Severity:	normal	CC:	sci
Priority:	Normal
Version:	unspecified
Hardware:	All
OS:	Linux
Whiteboard:
Package list:		Runtime testing required:	---

Description Michael Orlitzky gentoo-dev

2023-06-19 10:24:54 UTC

I'm testing a suitesparse upgrade right now and noticed this:

  Building CXX object ... -O2 -pipe -march=native -O0 -fopenmp  -O3

My CXXFLAGS are "-O2 -pipe -march=native -O0" (I appended the -O0 to speed up the build), but since the -O3 comes after, it's being ignored.

Comment 1 Matthias Maier gentoo-dev

2023-12-07 05:25:11 UTC

The trilinos build system has the bad habit of hard coding the "-O3" optimization flag in quite a number of places.