> > It seems the LTO flags are only in CMAKE_${lang}_COMPILE_OPTIONS_IPO but I
> > have not yet figured out where those are pulled into doxygen
> >
> > --
> > :wq Claudio
>
> I think you want this:
I just tested the equivalent diff that comments out the setting of IPO to true.
ok tb
>
> diff --git a/devel/doxygen/Makefile b/devel/doxygen/Makefile
> index 757db6e1e65..34f787c3ab9 100644
> --- a/devel/doxygen/Makefile
> +++ b/devel/doxygen/Makefile
> @@ -3,6 +3,7 @@ COMMENT= source code documentation generator tool
> VERSION= 1.15.0
> DISTNAME= doxygen-${VERSION}.src
> PKGNAME= doxygen-${VERSION}
> +REVISION= 0
>
> CATEGORIES= devel textproc
>
> diff --git a/devel/doxygen/patches/patch-CMakeLists_txt
> b/devel/doxygen/patches/patch-CMakeLists_txt
> new file mode 100644
> index 00000000000..ad77afce3d0
> --- /dev/null
> +++ b/devel/doxygen/patches/patch-CMakeLists_txt
> @@ -0,0 +1,13 @@
> +Index: CMakeLists.txt
> +--- CMakeLists.txt.orig
> ++++ CMakeLists.txt
> +@@ -36,9 +36,6 @@ option(enable_coverage "Enable coverage reporting for
> + option(enable_tracing "Enable tracing option in release builds
> [development]" OFF)
> + option(enable_lex_debug "Enable debugging info for lexical scanners in
> release builds [development]" OFF)
> +
> +-if(CMAKE_BUILD_TYPE STREQUAL "Release")
> +- set(CMAKE_INTERPROCEDURAL_OPTIMIZATION TRUE)
> +-endif()
> +
> + include(CheckCXXCompilerFlag)
> +
>
