diff --git a/linux/build b/linux/build
index 4c932a4f..c5c8b2ef 100755
--- a/linux/build
+++ b/linux/build
@@ -77,7 +77,7 @@ then
 fi
 if [[ $out == *"capi.h: No such file or directory"* ]]
 then
-    echo "Error: please install tesseract development library (tesseract-ocr-dev for Debian/Ubuntu)";
+    echo "Error: please install tesseract development library (libtesseract-dev for Debian/Ubuntu)";
     exit 3
 fi
 if [[ $out == *"allheaders.h: No such file or directory"* ]]
diff --git a/linux/builddebug b/linux/builddebug
index fcdc32e1..758c2d79 100755
--- a/linux/builddebug
+++ b/linux/builddebug
@@ -1,11 +1,11 @@
 #!/bin/bash
-BLD_FLAGS="-g -std=gnu99 -Wno-write-strings -Wno-unused-result -DGPAC_CONFIG_LINUX -D_FILE_OFFSET_BITS=64 -DVERSION_FILE_PRESENT -DENABLE_OCR -DFT2_BUILD_LIBRARY -DGPAC_DISABLE_VTT -DGPAC_DISABLE_OD_DUMP"
+BLD_FLAGS="-g -std=gnu99 -Wno-write-strings -DGPAC_CONFIG_LINUX -D_FILE_OFFSET_BITS=64 -DVERSION_FILE_PRESENT -DENABLE_OCR -DFT2_BUILD_LIBRARY -DGPAC_DISABLE_VTT -DGPAC_DISABLE_OD_DUMP"
 bit_os=$(getconf LONG_BIT)
 if [ "$bit_os"=="64" ]
 then
-        BLD_FLAGS="$BLD_FLAGS -DGPAC_64_BITS"
+    BLD_FLAGS="$BLD_FLAGS -DGPAC_64_BITS"
 fi
-BLD_INCLUDE="-I../src -I /usr/local/include/leptonica/ -I /usr/local/include/tesseract/ -I /usr/include/leptonica/ -I /usr/include/tesseract/  -I../src/lib_ccx/ -I../src/gpacmp4/ -I../src/libpng/ -I../src/zlib/ -I../src/zvbi -I../src/lib_hash -I../src/protobuf-c -I../src/utf8proc -I../src/freetype/include"
+BLD_INCLUDE="-I../src -I /usr/include/leptonica/ -I /usr/include/tesseract/ -I../src/lib_ccx/ -I../src/gpacmp4/ -I../src/libpng/ -I../src/zlib/ -I../src/zvbi -I../src/lib_hash -I../src/protobuf-c -I../src/utf8proc -I../src/freetype/include"
 SRC_LIBPNG="$(find ../src/libpng/ -name '*.c')"
 SRC_ZLIB="$(find ../src/zlib/ -name '*.c')"
 SRC_ZVBI="$(find ../src/zvbi/ -name '*.c')"
@@ -58,11 +58,42 @@ SRC_FREETYPE="../src/freetype/autofit/autofit.c
 API_WRAPPERS="$(find ../src/wrappers/ -name '*.c')"
 BLD_SOURCES="../src/ccextractor.c $SRC_CCX $SRC_GPAC $SRC_ZLIB $SRC_ZVBI $SRC_LIBPNG $SRC_HASH $SRC_PROTOBUF $SRC_UTF8PROC $API_WRAPPERS $SRC_FREETYPE"
 BLD_LINKER="-lm -zmuldefs -l tesseract -l lept"
-#BLD_DEBUG="-g -O1 -fsanitize=address -fno-omit-frame-pointer"
-BLD_DEBUG=""
 
 echo "Running pre-build script..."
 ./pre-build.sh
 echo "Trying to compile..."
 
-gcc $BLD_DEBUG $BLD_FLAGS $BLD_INCLUDE -o ccextractor $BLD_SOURCES $BLD_LINKER
+out=$((LC_ALL=C gcc $BLD_FLAGS $BLD_INCLUDE -o ccextractor $BLD_SOURCES $BLD_LINKER)2>&1)
+res=$?
+if [[ $out == *"gcc: command not found"* ]]
+then
+    echo "Error: please install gcc";
+    exit 1
+fi
+if [[ $out == *"curl.h: No such file or directory"* ]]
+then
+    echo "Error: please install curl development library (libcurl4-gnutls-dev for Debian/Ubuntu)";
+    exit 2
+fi
+if [[ $out == *"capi.h: No such file or directory"* ]]
+then
+    echo "Error: please install tesseract development library (libtesseract-dev for Debian/Ubuntu)";
+    exit 3
+fi
+if [[ $out == *"allheaders.h: No such file or directory"* ]]
+then
+    echo "Error: please install leptonica development library (libleptonica-dev for Debian/Ubuntu)";
+    exit 4
+fi
+if [[ $res -ne 0 ]]  # Unknown error
+then
+    echo "Compiled with errors"
+    >&2 echo "$out"
+    exit 5
+fi
+if [[ "$out" != "" ]] ; then
+    echo "$out"
+    echo "Compilation successful, compiler message shown in previous lines"
+else
+    echo "Compilation successful, no compiler messages."
+fi