package/powertop: depends on c++

Fixes configure error due to missing c++

checking for library containing pthread_create... no
configure: error: libpthread is required but was not found

Quote from config.log:

configure:21552: checking for library containing pthread_create
configure:21583: false -o conftest    -Os    conftest.cpp -lintl  >&5
[...]
ac_cv_env_CXX_set=set
ac_cv_env_CXX_value=false

using this defconfig

BR2_TOOLCHAIN_BUILDROOT_WCHAR=y
BR2_PACKAGE_POWERTOP=y

Please note the number of .cpp files belonging to powertop

output/build/powertop-2.7$ find -iname *.cpp | wc -l
59

Signed-off-by: Bernd Kuhls <bernd.kuhls@t-online.de>
Acked-by: Gustavo Zacarias <gustavo@zacarias.com.ar>
Signed-off-by: Thomas Petazzoni <thomas.petazzoni@free-electrons.com>

diff --git a/package/powertop/Config.in b/package/powertop/Config.in
index 5ba83b3c23b13af536ce49a1e762fc8e878482ed..a532302a64f39ce03ff804d8334eff7a3c1204f9 100644 (file)
--- a/package/powertop/Config.in
+++ b/package/powertop/Config.in
@@ -1,9 +1,8 @@
 config BR2_PACKAGE_POWERTOP
        bool "powertop"
-       # pciutils dependency
-       depends on !BR2_bfin
-       # libnl dependency
-       depends on BR2_TOOLCHAIN_HAS_THREADS
+       depends on !BR2_bfin # pciutils
+       depends on BR2_INSTALL_LIBSTDCPP
+       depends on BR2_TOOLCHAIN_HAS_THREADS # libnl
        depends on BR2_USE_WCHAR
        select BR2_PACKAGE_NCURSES
        select BR2_PACKAGE_PCIUTILS
@@ -14,6 +13,7 @@ config BR2_PACKAGE_POWERTOP
 
          https://01.org/powertop/
 
-comment "powertop needs a toolchain w/ threads, wchar"
+comment "powertop needs a toolchain w/ C++, threads, wchar"
        depends on !BR2_bfin
-       depends on !BR2_TOOLCHAIN_HAS_THREADS || !BR2_USE_WCHAR
+       depends on !BR2_INSTALL_LIBSTDCPP || !BR2_TOOLCHAIN_HAS_THREADS || \
+               !BR2_USE_WCHAR