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-rw-r--r--src/gamma-linux-drm.h4
1 files changed, 2 insertions, 2 deletions
diff --git a/src/gamma-linux-drm.h b/src/gamma-linux-drm.h
index 2f757bf..91707ae 100644
--- a/src/gamma-linux-drm.h
+++ b/src/gamma-linux-drm.h
@@ -54,7 +54,7 @@ int libgamma_linux_drm_site_initialise(libgamma_site_state_t* restrict this,
*
* @param this The site state
*/
-void libgamma_linux_drm_site_destroy(libgamma_site_state_t* restrict this);
+void libgamma_linux_drm_site_destroy(libgamma_site_state_t* restrict this) __attribute__((const));
/**
* Restore the gamma ramps all CRTCS with a site to the system settings
@@ -112,7 +112,7 @@ int libgamma_linux_drm_crtc_initialise(libgamma_crtc_state_t* restrict this,
*
* @param this The CRTC state
*/
-void libgamma_linux_drm_crtc_destroy(libgamma_crtc_state_t* restrict this);
+void libgamma_linux_drm_crtc_destroy(libgamma_crtc_state_t* restrict this) __attribute__((const));
/**
* Restore the gamma ramps for a CRTC to the system settings for that CRTC