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CCACHE_BASEDIR does not normalize MSVC environment paths

Status: Open.

#1797 In ccache/ccache;

· whosayn opened on Aug 28, 2026

test.fileclone fails with GCC 10 on Ubuntu 20.04

Status: Open.

#1795 In ccache/ccache;

· gjasny opened on Aug 24, 2026

GCC 9+ dir-form -fprofile-use: profile data is never found when object files are in subdirectories

Status: Open.

#1793 In ccache/ccache;

· oraluben opened on Aug 24, 2026

ccache treats all #line directives as files that exist

Status: Open.

#1784 In ccache/ccache;

· trustytrojan opened on Aug 14, 2026

clang-cl -clang: passthrough option is not interpreted by ccache

compiler: clang-clRelated to clang-clRelated to clang-cl

issue: compatibilityBehavior caused by newer compiler/toolchain versionsBehavior caused by newer compiler/toolchain versions

Status: Open.

#1775 In ccache/ccache;

· trustytrojan opened on Aug 7, 2026

Hashing VCToolsInstallDir does not account for different Visual Studio product names

issue: improvementEnhancements that improve performance, usability or code quality, not a new featureEnhancements that improve performance, usability or code quality, not a new feature

Status: Open.

#1772 In ccache/ccache;

· trustytrojan opened on Jul 31, 2026

Allow listing statistics per namespace

issue: featureNew featureNew feature

Status: Open.

#1758 In ccache/ccache;

· mrjoel opened on Jul 10, 2026

Multiple cache dirs

issue: featureNew featureNew feature

status: awaiting feedbackWaiting for response from issue/PR authorWaiting for response from issue/PR author

Status: Open.

#1755 In ccache/ccache;

· thorsten-klein opened on Jun 30, 2026

Restore functionality of environment variable "DEPENDENCIES_OUTPUT"

issue: featureNew featureNew feature

Status: Open.

#1723 In ccache/ccache;

· xeyownt opened on Apr 8, 2026

Precompiled headers vs gcc vs ccache - not safely usable?

issue: improvementEnhancements that improve performance, usability or code quality, not a new featureEnhancements that improve performance, usability or code quality, not a new feature

Status: Open.

#1686 In ccache/ccache;

· anarazel opened on Feb 18, 2026

Better docs for why PCHs might not work

area: documentationAffects Ccache documentationAffects Ccache documentation

issue: improvementEnhancements that improve performance, usability or code quality, not a new featureEnhancements that improve performance, usability or code quality, not a new feature

Status: Open.

#1668 In ccache/ccache;

· xTachyon opened on Jan 10, 2026

Support for IAR compiler for ARM

issue: featureNew featureNew feature

os: windowsRelated to building or running on WindowsRelated to building or running on Windows

Status: Open.

#1653 In ccache/ccache;

· doitaa opened on Nov 1, 2025