Re: [PATCH 1/1] contrib/buildsystems: fix Visual Studio Debug configuration
On 23/09/2019 09:28, Alexandr Miloslavskiy via GitGitGadget wrote:
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> From: Alexandr Miloslavskiy <alexandr.miloslavskiy@syntevo.com>
>
> Even though Debug configuration builds, the resulting build is incorrect
> in a subtle way: it mixes up Debug and Release binaries, which in turn
> causes hard-to-predict bugs.
>
> In my case, when git calls iconv library, iconv sets 'errno' and git
> then tests it, but in Debug and Release CRT those 'errno' are different
> memory locations.
>
> This patch addresses 3 connected bugs:
> 1) Typo in '\(Configuration)'. As a result, Debug configuration
> condition is always false and Release path is taken instead.
> 2) Regexp that replaced 'zlib.lib' with 'zlibd.lib' was only affecting
> the first occurrence. However, some projects have it listed twice.
> Previously this bug was hidden, because Debug path was never taken.
> I decided that avoiding double -lz in makefile is fragile and I'd
> better replace all occurrences instead.
> 3) In Debug, 'libcurl-d.lib' should be used instead of 'libcurl.lib'.
> Previously this bug was hidden, because Debug path was never taken.
I just bumped against a potential issue like this. I was test compiling [1a,b] the `vs/master` branch from Git-For-Windows and got the LINK error that the 'libcurl-d.lib' was not found (4 places).
Error LNK1104 cannot open file 'libcurl-d.lib' git-imap-send C:\git-sdk-64\usr\src\git\git-imap-send\ LINK 1
Having just located this email, I changed the build type to 'Release' and the errors disappeared.
Do we also need to identify where the libcurl-d.lib will be found? i.e. is it something that needs including via the sdk pacman list (I think I'm up to date but maybe not..)
A quick web search didn't show any hits for `libcurl-d.lib` (with the dash `-`), though did find a few for `libcurld.lib`.
Philip
Why compiling: [1a] https://www.sourcetrail.com is a cross-platform source explorer that helps you get productive on unfamiliar source code. [1b] Sourcetrail is now free and open-source https://www.sourcetrail.com/blog/open_source/
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>
> Signed-off-by: Alexandr Miloslavskiy <alexandr.miloslavskiy@syntevo.com>
> ---
> contrib/buildsystems/Generators/Vcxproj.pm | 15 ++++++++-------
> 1 file changed, 8 insertions(+), 7 deletions(-)
>
> diff --git a/contrib/buildsystems/Generators/Vcxproj.pm b/contrib/buildsystems/Generators/Vcxproj.pm
> index 576ccabe1d..7b1e277eca 100644
> --- a/contrib/buildsystems/Generators/Vcxproj.pm
> +++ b/contrib/buildsystems/Generators/Vcxproj.pm
> @@ -79,7 +79,8 @@ sub createProject {
> if (!$static_library) {
> $libs_release = join(";", sort(grep /^(?!libgit\.lib|xdiff\/lib\.lib|vcs-svn\/lib\.lib)/, @{$$build_structure{"$prefix${name}_LIBS"}}));
> $libs_debug = $libs_release;
> - $libs_debug =~ s/zlib\.lib/zlibd\.lib/;
> + $libs_debug =~ s/zlib\.lib/zlibd\.lib/g;
> + $libs_debug =~ s/libcurl\.lib/libcurl-d\.lib/g;
> }
>
> $defines =~ s/-D//g;
> @@ -119,13 +120,13 @@ sub createProject {
> <VCPKGArch Condition="'\$(Platform)'=='Win32'">x86-windows</VCPKGArch>
> <VCPKGArch Condition="'\$(Platform)'!='Win32'">x64-windows</VCPKGArch>
> <VCPKGArchDirectory>$cdup\\compat\\vcbuild\\vcpkg\\installed\\\$(VCPKGArch)</VCPKGArchDirectory>
> - <VCPKGBinDirectory Condition="'\(Configuration)'=='Debug'">\$(VCPKGArchDirectory)\\debug\\bin</VCPKGBinDirectory>
> - <VCPKGLibDirectory Condition="'\(Configuration)'=='Debug'">\$(VCPKGArchDirectory)\\debug\\lib</VCPKGLibDirectory>
> - <VCPKGBinDirectory Condition="'\(Configuration)'!='Debug'">\$(VCPKGArchDirectory)\\bin</VCPKGBinDirectory>
> - <VCPKGLibDirectory Condition="'\(Configuration)'!='Debug'">\$(VCPKGArchDirectory)\\lib</VCPKGLibDirectory>
> + <VCPKGBinDirectory Condition="'\$(Configuration)'=='Debug'">\$(VCPKGArchDirectory)\\debug\\bin</VCPKGBinDirectory>
> + <VCPKGLibDirectory Condition="'\$(Configuration)'=='Debug'">\$(VCPKGArchDirectory)\\debug\\lib</VCPKGLibDirectory>
> + <VCPKGBinDirectory Condition="'\$(Configuration)'!='Debug'">\$(VCPKGArchDirectory)\\bin</VCPKGBinDirectory>
> + <VCPKGLibDirectory Condition="'\$(Configuration)'!='Debug'">\$(VCPKGArchDirectory)\\lib</VCPKGLibDirectory>
> <VCPKGIncludeDirectory>\$(VCPKGArchDirectory)\\include</VCPKGIncludeDirectory>
> - <VCPKGLibs Condition="'\(Configuration)'=='Debug'">$libs_debug</VCPKGLibs>
> - <VCPKGLibs Condition="'\(Configuration)'!='Debug'">$libs_release</VCPKGLibs>
> + <VCPKGLibs Condition="'\$(Configuration)'=='Debug'">$libs_debug</VCPKGLibs>
> + <VCPKGLibs Condition="'\$(Configuration)'!='Debug'">$libs_release</VCPKGLibs>
> </PropertyGroup>
> <Import Project="\$(VCTargetsPath)\\Microsoft.Cpp.Default.props" />
> <PropertyGroup Condition="'\$(Configuration)'=='Debug'" Label="Configuration">
