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Wayland: Make libwayland-client dynamically loaded

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The insight to use wayland.xml to resolve the difficult-to-redirect
interface symbols was gleaned from SDL.

Instead of compiling the code output of wayland-scanner separately it is
made part of the wl_init compilation unit.  This lets us do things like
transparently rename our copies of Wayland globals.

The OS version of wayland-client-protocol.h is no longer used by GLFW,
but it is presumably ABI compatible with the output of wayland-scanner.

Closes #1174.
Closes #1338.
Related to #1655.
Closes #1943.
This commit is contained in:
Camilla Löwy
2021-07-13 18:12:43 +02:00
parent 87d5646f5d
commit dffe203c17
7 changed files with 192 additions and 12 deletions
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src/CMakeLists.txt
+7 -3
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@@ -57,6 +57,7 @@ if (_GLFW_WAYLAND)
find_program(WAYLAND_SCANNER_EXECUTABLE NAMES wayland-scanner)
pkg_check_modules(WAYLAND_PROTOCOLS REQUIRED wayland-protocols>=1.15)
pkg_get_variable(WAYLAND_PROTOCOLS_BASE wayland-protocols pkgdatadir)
pkg_get_variable(WAYLAND_CLIENT_PKGDATADIR wayland-client pkgdatadir)
macro(wayland_generate protocol_file output_file)
add_custom_command(OUTPUT "${output_file}.h"
@@ -64,14 +65,17 @@ if (_GLFW_WAYLAND)
DEPENDS "${protocol_file}"
VERBATIM)
add_custom_command(OUTPUT "${output_file}.c"
COMMAND "${WAYLAND_SCANNER_EXECUTABLE}" private-code "${protocol_file}" "${output_file}.c"
add_custom_command(OUTPUT "${output_file}-code.h"
COMMAND "${WAYLAND_SCANNER_EXECUTABLE}" private-code "${protocol_file}" "${output_file}-code.h"
DEPENDS "${protocol_file}"
VERBATIM)
target_sources(glfw PRIVATE "${output_file}.h" "${output_file}.c")
target_sources(glfw PRIVATE "${output_file}.h" "${output_file}-code.h")
endmacro()
wayland_generate(
"${WAYLAND_CLIENT_PKGDATADIR}/wayland.xml"
"${GLFW_BINARY_DIR}/src/wayland-client-protocol")
wayland_generate(
"${WAYLAND_PROTOCOLS_BASE}/stable/xdg-shell/xdg-shell.xml"
"${GLFW_BINARY_DIR}/src/wayland-xdg-shell-client-protocol")