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configure: Improves GLES 1.x checks

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We now always aim to use pkg-config based configuration when possible,
but when not configure.ac now knows the difference between GLES_CM
libraries that contain EGL symbols (I.e. a separate EGL library doesn't
need to be found) and GLESv1_CM libraries that don't contain EGL
symbols.

http://bugzilla.clutter-project.org/show_bug.cgi?id=2160
This commit is contained in:
Robert Bragg 2010-07-06 14:23:40 +01:00
parent 5cb4e0c5d0
commit 6757f41c86
1 changed files with 50 additions and 42 deletions
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92
configure.ac
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@ -375,46 +375,48 @@ AS_IF([test "x$COGL_DRIVER" = "xgles"],
AC_DEFINE([HAVE_COGL_GLES], 1, [Have GL/ES for rendering])
AC_SUBST(COGL_GLES_VERSION, [COGL_HAS_GLES1])
AC_CHECK_HEADERS([GLES/egl.h],
[],
[AC_MSG_ERROR([Unable to locate required GLES headers])])
PKG_CHECK_EXISTS([glesv1_cm],
[BACKEND_PC_FILES="$BACKEND_PC_FILES glesv1_cm"],
[BACKEND_PC_FILES="$BACKEND_PC_FILES glesv1_cm"
NEED_SEPARATE_EGL=yes
],
[
# check for upper/lower case libgles_em
# The powervr sdk uses lower case.
AC_CHECK_HEADERS([$clutter_gl_header],
[],
[AC_MSG_ERROR([Unable to locate required GLES headers])])
# Check for a GLES 1.x Common Profile library with/without EGL.
#
# Note: historically GLES 1 libraries shipped with the
# EGL and GLES symbols all bundled in one library. Now
# the Khronos Implementers Guide defines two naming
# schemes: -lGLES_CM should be used for a library that
# bundles the GLES and EGL API together and -lGLESv1_CM
# would be used for a standalone GLES API.
AC_CHECK_LIB(GLES_CM, [eglInitialize],
[HAVE_LIBGLES=yes],
[HAVE_LIBGLES=no])
AS_IF([test "x$HAVE_LIBGLES" = "xyes"],
[FLAVOUR_LIBS="$FLAVOUR_LIBS -lGLES_CM"],
[
AC_CHECK_LIB(GLESv1_CM, [eglInitialize],
[HAVE_LIBGLES=yes],
[HAVE_LIBGLES=no])
AS_IF([test "x$HAVE_LIBGLES" = "xyes"],
[FLAVOUR_LIBS="$FLAVOUR_LIBS -lGLESv1_CM"],
[
AC_CHECK_LIB(gles_cm, [eglInitialize],
[HAVE_LIBGLES=yes],
[HAVE_LIBGLES=no])
AS_IF([test "x$HAVE_LIBGLES" = "xyes"],
[FLAVOUR_LIBS="$FLAVOUR_LIBS -lgles_cm"],
[
AC_MSG_ERROR([GLES library not found and egl backend requested.])
]
)
]
)
]
)
[FLAVOUR_LIBS="$FLAVOUR_LIBS -lGLES_CM"],
[
AC_CHECK_LIB(GLESv1_CM, [glFlush],
[FLAVOUR_LIBS="$FLAVOUR_LIBS -lGLESv1_CM"
NEED_SEPARATE_EGL=yes
],
[AC_MSG_ERROR([Unable to locate required GLES 1.x Common Profile library])])
])
])
PKG_CHECK_EXISTS([egl], [BACKEND_PC_FILES="$BACKEND_PC_FILES egl"])
AS_IF([test "x$NEED_SEPARATE_EGL" = "xyes"],
[
PKG_CHECK_EXISTS([egl],
[BACKEND_PC_FILES="$BACKEND_PC_FILES egl"],
[
AC_CHECK_HEADERS([GLES/egl.h],
[],
[AC_MSG_ERROR([Unable to locate required EGL headers])])
AC_CHECK_LIB(EGL, [eglInitialize],
[FLAVOUR_LIBS="$FLAVOUR_LIBS -lEGL"],
[AC_MSG_ERROR([Unable to locate required EGL library])])
])
])
],
[2*],
@ -425,8 +427,14 @@ AS_IF([test "x$COGL_DRIVER" = "xgles"],
AC_SUBST(COGL_GLES_VERSION, [COGL_HAS_GLES2])
PKG_CHECK_EXISTS([glesv2],
[BACKEND_PC_FILES="$BACKEND_PC_FILES glesv2"],
[FLAVOUR_LIBS="$FLAVOUR_LIBS -lGLESv2"])
[BACKEND_PC_FILES="$BACKEND_PC_FILES glesv2"],
[
AC_CHECK_HEADERS([$clutter_gl_header],
[],
[AC_MSG_ERROR([Unable to locate required GLES headers])])
FLAVOUR_LIBS="$FLAVOUR_LIBS -lGLESv2"
])
PKG_CHECK_EXISTS([egl],
[BACKEND_PC_FILES="$BACKEND_PC_FILES egl"],
@ -434,6 +442,11 @@ AS_IF([test "x$COGL_DRIVER" = "xgles"],
AC_CHECK_HEADERS([EGL/egl.h],
[],
[AC_MSG_ERROR([Unable to locate required EGL headers])])
AC_CHECK_LIB(EGL, [eglInitialize],
[FLAVOUR_LIBS="$FLAVOUR_LIBS -lEGL"],
[AC_MSG_ERROR([Unable to locate required EGL library])])
FLAVOUR_LIBS="$FLAVOUR_LIBS -lEGL"
]
)
@ -492,12 +505,7 @@ done;
AC_SUBST(COGL_DEFINES)
# at this point we must have a GL header to check
AS_IF([test "x$clutter_gl_header" = "x"], [AC_MSG_ERROR([Internal error: no GL header set])])
AC_CHECK_HEADERS([$clutter_gl_header],
[],
[AC_MSG_ERROR([Unable to locate required GLES headers])])
CLUTTER_GL_HEADER=$clutter_gl_header