FIX: FTBFS mrpt_xsens

Author: jlblancoc

3rdparty/CMakeLists.txt

@@ -187,7 +187,15 @@ if(CMAKE_MRPT_HAS_xSENS)
 
 	if (MSVC)
 		target_compile_definitions(mrpt_xsens PRIVATE XDA_STATIC_LIB)
+	else()
+		# Needed for <time.h> to define timegm()
+		target_compile_definitions(mrpt_xsens PRIVATE 
+			_GNU_SOURCE
+			_BSD_SOURCE
+			_DEFAULT_SOURCE
+			)
 	endif()
+	
 
 	# needs to be exported, even if private, to make cmake happy since it wants
 	# libraries to be statically-linkable:

CMakeLists.txt

@@ -405,6 +405,7 @@ if(CMAKE_COMPILER_IS_GNUCXX)
 	add_compile_options(-Wall  -Wno-long-long -Wno-variadic-macros -Wshadow)
 	add_compile_options(-Wreturn-local-addr   -Werror=return-local-addr)
 	add_compile_options(-Wno-psabi)
+	add_compile_options("$<$<COMPILE_LANGUAGE:C>:-Werror=implicit-function-declaration>")
 
 	# Workaround: Eigen <3.4 produces *tons* of warnings in GCC >=6. See http://eigen.tuxfamily.org/bz/show_bug.cgi?id=1221
 	if (NOT ${CMAKE_CXX_COMPILER_VERSION} LESS "6.0" AND "${MRPT_EIGEN_VERSION}" VERSION_LESS "3.4")

doc/source/doxygen-docs/changelog.md

@@ -4,6 +4,8 @@
 - Changes in libraries:
   - \ref mrpt_obs_grp:
     - mrpt::math::TBoundingBox: Mark all relevant methods with ``[nodiscard]`` to avoid mistakes.
+- BUG FIXES:
+  - Fix Debian bug #1066207: FTBFS in latest sid due to undefined declarations in mrpt_xsens C library.
 
 # Version 2.11.12: Released March 10th, 2024
 - Changes in libraries: