dep: Add libsamplerate

dep/libsamplerate/cmake/FindFFTW3.cmake

@@ -0,0 +1,88 @@
+# Adapted from: https://github.com/wjakob/layerlab/blob/master/cmake/FindFFTW.cmake
+
+# Copyright (c) 2015, Wenzel Jakob
+# All rights reserved.
+#
+# Redistribution and use in source and binary forms, with or without
+# modification, are permitted provided that the following conditions are met:
+#
+# * Redistributions of source code must retain the above copyright notice, this
+#   list of conditions and the following disclaimer.
+#
+# * Redistributions in binary form must reproduce the above copyright notice,
+#   this list of conditions and the following disclaimer in the documentation
+#   and/or other materials provided with the distribution.
+#
+# THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
+# AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+# IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
+# DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE
+# FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
+# DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
+# SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER
+# CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
+# OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
+# OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+
+# - Find FFTW3
+# Find the native FFTW3 includes and library
+#
+#  Cache variables:
+#
+#  FFTW3_INCLUDE_DIR  - where to find fftw3.h
+#  FFTW3_LIBRARY      - Path to FFTW3 libray.
+#  FFTW3_ROOT         - Root of FFTW3 installation.
+#
+#  User variables:
+#
+#  FFTW3_INCLUDE_DIRS - where to find fftw3.h
+#  FFTW3_LIBRARIES    - List of libraries when using FFTW3.
+#  FFTW3_FOUND        - True if FFTW3 found.
+
+
+if(FFTW3_INCLUDE_DIR)
+  # Already in cache, be silent
+  set(FFTW3_FIND_QUIETLY TRUE)
+endif(FFTW3_INCLUDE_DIR)
+
+find_package(PkgConfig QUIET)
+pkg_check_modules(PC_FFTW3 QUIET fftw3)
+
+set(FFTW3_VERSION ${PC_FFTW3_VERSION})
+
+find_path(FFTW3_INCLUDE_DIR fftw3.h
+  HINTS
+    ${PC_FFTW3_INCLUDEDIR}
+    ${PC_FFTW3_INCLUDE_DIRS}
+    ${FFTW3_ROOT})
+
+find_library(FFTW3_LIBRARY NAMES fftw3
+  HINTS
+    ${PC_FFTW3_LIBDIR}
+    ${PC_FFTW3_LIBRARY_DIRS}
+    ${FFTW3_ROOT})
+
+# handle the QUIETLY and REQUIRED arguments and set FFTW3_FOUND to TRUE if
+# all listed variables are TRUE
+include(FindPackageHandleStandardArgs)
+find_package_handle_standard_args(FFTW3
+  REQUIRED_VARS
+    FFTW3_LIBRARY
+    FFTW3_INCLUDE_DIR
+  VERSION_VAR
+    FFTW3_VERSION)
+
+if(FFTW3_FOUND)
+	set(FFTW3_LIBRARIES ${FFTW3_LIBRARY})
+	set(FFTW3_INCLUDE_DIRS ${FFTW3_INCLUDE_DIR})
+	
+	if(NOT TARGET FFTW3::fftw3)
+	  add_library(FFTW3::fftw3 UNKNOWN IMPORTED)
+		set_target_properties(FFTW3::fftw3 PROPERTIES
+			INTERFACE_INCLUDE_DIRECTORIES "${FFTW3_INCLUDE_DIR}"
+			IMPORTED_LOCATION "${FFTW3_LIBRARY}"
+		)
+  endif()
+endif()
+
+mark_as_advanced(FFTW3_LIBRARY FFTW3_INCLUDE_DIR)