diff --git a/conda/build.sh b/conda/build.sh
index 604d590..a277df2 100644
--- a/conda/build.sh
+++ b/conda/build.sh
@@ -2,22 +2,45 @@
 
 # Inspired from https://github.com/conda-forge/pyqt-feedstock/tree/main/recipe
 
-if [ "$(uname)" == "Linux" ];
-then
-    USED_BUILD_PREFIX=${BUILD_PREFIX:-${PREFIX}}
-
-    ln -s ${GXX} g++ || true
-    ln -s ${GCC} gcc || true
-    ln -s ${USED_BUILD_PREFIX}/bin/${HOST}-gcc-ar gcc-ar || true
+if [ "$(uname)" == "Linux" ]; then
+    GXX_PATH=$(command -v "${GXX}")
+    GCC_PATH=$(command -v "${GCC}")
+    GCC_AR_PATH=$(command -v "${GCC_AR}")
+    ln -sf "${GXX_PATH}" g++
+    ln -sf "${GCC_PATH}" gcc
+    ln -sf "${GCC_AR_PATH}" gcc-ar
 
     export LD=${GXX}
     export CC=${GCC}
     export CXX=${GXX}
     export PKG_CONFIG_EXECUTABLE=$(basename $(which pkg-config))
 
+    chmod +x g++ gcc gcc-ar
     export PATH=${PWD}:${PATH}
-fi
 
+    SYSROOT_FLAGS="-L ${BUILD_PREFIX}/${HOST}/sysroot/usr/lib64 -L ${BUILD_PREFIX}/${HOST}/sysroot/usr/lib"
+    export CFLAGS="$SYSROOT_FLAGS $CFLAGS"
+    export CXXFLAGS="$SYSROOT_FLAGS $CXXFLAGS"
+    export LDFLAGS="$SYSROOT_FLAGS $LDFLAGS"
+
+    echo "CC=${CC}"
+    echo "CXX=${CXX}"
+    echo "GCC=${GCC}"
+    echo "GXX=${GXX}"
+
+    which gcc
+    which g++
+
+    readlink -f "$(which gcc)" || true
+    readlink -f "$(which g++)" || true
+    readlink -f "$GCC" || true
+    readlink -f "$GXX" || true
+
+    "${CC}" --version
+    "${CXX}" --version
+
+    "$GXX" -v -E -x c++ /dev/null
+fi
 
 echo "**** BUILD"
 sip-install --verbose
@@ -27,14 +50,12 @@ echo "****** CHECK PYTHON LIB"
 
 # To check if Python lib is not in the dependencies with conda-forge distribution.
 # See https://github.com/conda-forge/boost-feedstock/issues/81
-if [ `uname` = "Darwin" ]; then
-    otool -L `${PYTHON} -c "import PyQGLViewer as pyqgl ; print(pyqgl.__file__)"`
-fi
-
+# if [ $(uname) = "Darwin" ]; then
+#     otool -L $(${PYTHON} -c "import PyQGLViewer as pyqgl ; print(pyqgl.__file__)")
+# fi
 
-if [ "$(uname)" == "Linux" ];
-then
-    ldd `${PYTHON} -c "import PyQGLViewer as pyqgl ; print(pyqgl.__file__)"`
+if [ "$(uname)" == "Linux" ]; then
+    ldd $(${PYTHON} -c "import PyQGLViewer as pyqgl ; print(pyqgl.__file__)")
 
 fi
 echo "****** END OF BUILD PROCESS"
diff --git a/conda/meta.yaml b/conda/meta.yaml
index 545a1ed..e4e4754 100644
--- a/conda/meta.yaml
+++ b/conda/meta.yaml
@@ -16,39 +16,32 @@ about:
 
 build:
   number: 2
-  string: py{{ PY_VER }}
   script_env:
     - SETUPTOOLS_SCM_PRETEND_VERSION
 
 requirements:
   build:
-    - {{ compiler('cxx')}}
+    - {{ compiler('cxx') }}
+    - {{ stdlib('c') }}
     - make                               # [unix]
-    - pkg-config                         # [linux]
-    - {{ cdt('mesa-libgl-devel') }}      # [linux]  # match libqglviewer CDT GL strategy
-    # from https://conda-forge.org/docs/maintainer/knowledge_base.html#libgl
-    - python                             # [build_platform != target_platform]
-    - sip                                # [build_platform != target_platform]
-    - pyqt-builder                       # [build_platform != target_platform]
+    - pkg-config                         # [unix]                 
   host:
     - python
     - pip
-    - qt-main
+    - sip<=6.10
     - pyqt
-    - libqglviewer
-    - sip
     - pyqt5-sip
-    - pyqt-builder
-    - {{ cdt('mesa-libgl-devel') }}      # [linux]
-    - libxcb                             # [linux]
-    - pthread-stubs                      # [linux]
+    - pyqt-builder 1.18.*
+    - packaging
+    - qt-main
+    - libqglviewer
+    - libgl-devel                        # [linux]
     - xorg-libxfixes                     # [linux]
 
-
   run:
     - python
-    - {{ pin_compatible('pyqt', max_pin='x.x') }}
-    - {{ pin_compatible('libqglviewer', max_pin='x.x') }}
+    - pyqt
+    - libqglviewer
     - pyopengl
     - xorg-libxfixes  # [linux]
 
diff --git a/pyproject.toml b/pyproject.toml
index 9b3ae39..8a38146 100644
--- a/pyproject.toml
+++ b/pyproject.toml
@@ -1,7 +1,7 @@
  # Specify the build system.
 [build-system]
 # "setuptools", "setuptools-scm" not used
-requires = ["sip", "PyQt-builder"]
+requires = ["sip<=6.10", "PyQt-builder"]
 build-backend = "sipbuild.api"
 
 
@@ -15,6 +15,11 @@ readme = "README.md"
 authors = [
     { name = "Frederic Boudon", email = "frederic.boudon@cirad.fr" }
 ]
+dependencies = [
+    "sip<=6.10",
+    "PyQt5",
+    "PyQt5-sip"
+]
 
 [tool.sip.project]
 sip-module = "PyQt5.sip"
@@ -23,6 +28,8 @@ sip-files-dir = "sip"
 [tool.sip.bindings.PyQGLViewer]
 qmake-QT = ['xml', 'opengl', 'gui', 'widgets']
 tags = ['QGLViewer_2_9_1']
+# include-dirs=['${CONDA_PREFIX}/include']
+# library-dirs=['${CONDA_PREFIX}/lib']
 
 # Could specified directly with new construct but currently only working on MacOS. Instead options set in project.py
 # libraries = ['QGLViewer ; system_platform == "Linux"','GLU  ; system_platform == "Linux"']
\ No newline at end of file